metamorphism

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Peacock coal 10
by James St. John

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/50656176747.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50656176747_c9a24189cb_m.jpg" alt="" /></a><br />Peacock coal 10 / James St. John</span>

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Sulfidic basaltic lapillistone (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711 to 2.719 Ga; drill core at the Potter Mine, east of Timmins, Ontario, Canada) 8
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/46967390585.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/46967390585_f0c886d3d9_m.jpg" alt="" /></a><br />Sulfidic basaltic lapillistone (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711 to 2.719 Ga; drill core at the Potter Mine, east of Timmins, Ontario, Canada) 8 / James St. John</span>

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Polymetallic massive sulfide (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711 to 2.719 Ga; drill core at the Potter Mine, east of Timmins, Ontario, Canada) 32
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/34001038068.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/34001038068_00bb1b729b_m.jpg" alt="" /></a><br />Polymetallic massive sulfide (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711 to 2.719 Ga; drill core at the Potter Mine, east of Timmins, Ontario, Canada) 32 / James St. John</span>

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Peridotite & serpentinite (Upper Komatiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711-2.717 Ga; southwest of the Potter Mine, east of Timmins, Ontario, Canada) 4
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/47893658451.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/47893658451_5e16a437c9_m.jpg" alt="" /></a><br />Peridotite & serpentinite (Upper Komatiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711-2.717 Ga; southwest of the Potter Mine, east of Timmins, Ontario, Canada) 4 / James St. John</span>

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Serpentinite (= cumulate metakomatiite) (Upper Komatiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711-2.717 Ga; southwest of the Potter Mine, east of Timmins, Ontario, Canada) 1
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/47098484734.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/47098484734_7bd1bee2c0_m.jpg" alt="" /></a><br />Serpentinite (= cumulate metakomatiite) (Upper Komatiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711-2.717 Ga; southwest of the Potter Mine, east of Timmins, Ontario, Canada) 1 / James St. John</span>

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Greenstone (metagabbro) (metamorphism at ~2.7 Ga, Neoarchean; Rt. 169 roadcut south of Peyla, Minnesota, USA) 5
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/23436916665.html" target="_blank"><img src="http://farm1.static.flickr.com/715/23436916665_054df07f9a_m.jpg" alt="" /></a><br />Greenstone (metagabbro) (metamorphism at ~2.7 Ga, Neoarchean; Rt. 169 roadcut south of Peyla, Minnesota, USA) 5 / James St. John</span>

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Lamprophyre with xenoliths (Dubreuilville Dike, Archean; Route 17 roadcut southeast of Princess Lake & north of Wawa, Ontario, Canada) 107
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/48312632797.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/48312632797_23c8f8e5bb_m.jpg" alt="" /></a><br />Lamprophyre with xenoliths (Dubreuilville Dike, Archean; Route 17 roadcut southeast of Princess Lake & north of Wawa, Ontario, Canada) 107 / James St. John</span>

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Marinace Green Granite (polymict metaconglomerate) (Ouricuri do Ouro Formation, Mesoproterozoic, ~1.6-1.7 Ga; Bahia, Brazil) 6
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/34951186016.html" target="_blank"><img src="http://farm5.static.flickr.com/4228/34951186016_80aa409b7f_m.jpg" alt="" /></a><br />Marinace Green Granite (polymict metaconglomerate) (Ouricuri do Ouro Formation, Mesoproterozoic, ~1.6-1.7 Ga; Bahia, Brazil) 6 / James St. John</span>

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Peridotite & serpentinite (Upper Komatiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711-2.717 Ga; southwest of the Potter Mine, east of Timmins, Ontario, Canada) 9
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/47104399434.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/47104399434_8bd6f8f4f4_m.jpg" alt="" /></a><br />Peridotite & serpentinite (Upper Komatiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711-2.717 Ga; southwest of the Potter Mine, east of Timmins, Ontario, Canada) 9 / James St. John</span>

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Peridotite & serpentinite (Upper Komatiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711-2.717 Ga; southwest of the Potter Mine, east of Timmins, Ontario, Canada) 6
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/47893612531.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/47893612531_4878ab0016_m.jpg" alt="" /></a><br />Peridotite & serpentinite (Upper Komatiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711-2.717 Ga; southwest of the Potter Mine, east of Timmins, Ontario, Canada) 6 / James St. John</span>

サイズ変更など

Sulfidic basaltic lapillistone (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711 to 2.719 Ga; drill core at the Potter Mine, east of Timmins, Ontario, Canada) 5
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/47883494151.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/47883494151_a6da477472_m.jpg" alt="" /></a><br />Sulfidic basaltic lapillistone (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711 to 2.719 Ga; drill core at the Potter Mine, east of Timmins, Ontario, Canada) 5 / James St. John</span>

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Rubies encased in K-feldspar in fuchsite-rich matrix (Precambrian; eastern Brazil) 1
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/49524654427.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49524654427_b606ca9d3e_m.jpg" alt="" /></a><br />Rubies encased in K-feldspar in fuchsite-rich matrix (Precambrian; eastern Brazil) 1 / James St. John</span>

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Serpentinite (Livengood Ophiolite, Early Cambrian; near Livengood, Alaska, USA) 1
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/51741573874.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51741573874_c4323a44d2_m.jpg" alt="" /></a><br />Serpentinite (Livengood Ophiolite, Early Cambrian; near Livengood, Alaska, USA) 1 / James St. John</span>

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Serpentinite (East Dover Ultramafic Body, Ordovician; roadcut southwest of East Dover, Vermont, USA) 3
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/49644705338.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49644705338_4d5d57dac7_m.jpg" alt="" /></a><br />Serpentinite (East Dover Ultramafic Body, Ordovician; roadcut southwest of East Dover, Vermont, USA) 3 / James St. John</span>

サイズ変更など

Metamorphosed pillow basalt (Ely Greenstone, Neoarchean, ~2.722 Ga; Rt. 169 roadcut just east of Ely, Minnesota, USA) 1
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/20905041163.html" target="_blank"><img src="http://farm1.static.flickr.com/679/20905041163_1076c5907e_m.jpg" alt="" /></a><br />Metamorphosed pillow basalt (Ely Greenstone, Neoarchean, ~2.722 Ga; Rt. 169 roadcut just east of Ely, Minnesota, USA) 1 / James St. John</span>

サイズ変更など

Polymetallic massive sulfide (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711 to 2.719 Ga; drill core at the Potter Mine, east of Timmins, Ontario, Canada) 30
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/34001032088.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/34001032088_7e3c33318b_m.jpg" alt="" /></a><br />Polymetallic massive sulfide (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711 to 2.719 Ga; drill core at the Potter Mine, east of Timmins, Ontario, Canada) 30 / James St. John</span>

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Crushed Sioux Quartzite (upper Paleoproterozoic, 1.65-1.70 Ga) in parking lot (Mitchell, South Dakota, USA)
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/8484567818.html" target="_blank"><img src="http://farm9.static.flickr.com/8508/8484567818_354680276d_m.jpg" alt="" /></a><br />Crushed Sioux Quartzite (upper Paleoproterozoic, 1.65-1.70 Ga) in parking lot (Mitchell, South Dakota, USA) / James St. John</span>

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Gneiss (Bedford, New York State, USA)
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/49155696648.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49155696648_352797f268_m.jpg" alt="" /></a><br />Gneiss (Bedford, New York State, USA) / James St. John</span>

サイズ変更など

Polymetallic massive sulfide (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711 to 2.719 Ga; drill cores at the Potter Mine, east of Timmins, Ontario, Canada) 26
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/32934013857.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/32934013857_5ae339c904_m.jpg" alt="" /></a><br />Polymetallic massive sulfide (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711 to 2.719 Ga; drill cores at the Potter Mine, east of Timmins, Ontario, Canada) 26 / James St. John</span>

サイズ変更など

Peridotite & serpentinite (Upper Komatiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711-2.717 Ga; southwest of the Potter Mine, east of Timmins, Ontario, Canada) 3
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/46977557815.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/46977557815_2ac8609725_m.jpg" alt="" /></a><br />Peridotite & serpentinite (Upper Komatiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711-2.717 Ga; southwest of the Potter Mine, east of Timmins, Ontario, Canada) 3 / James St. John</span>

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Anthracite coal 2
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/49143866616.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49143866616_394a8a91b5_m.jpg" alt="" /></a><br />Anthracite coal 2 / James St. John</span>

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Serpentinite (= cumulate metakomatiite) (Upper Komatiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711-2.717 Ga; southwest of the Potter Mine, east of Timmins, Ontario, Canada) 2
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/40921464923.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/40921464923_c5e2d3bfc3_m.jpg" alt="" /></a><br />Serpentinite (= cumulate metakomatiite) (Upper Komatiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711-2.717 Ga; southwest of the Potter Mine, east of Timmins, Ontario, Canada) 2 / James St. John</span>

サイズ変更など

Shungite (Zaonezhskaya Formation, middle Paleoproterozoic, 1.98-2.09 Ga; Shun'ga River area, northwestern Russia) 19
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/51445882117.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51445882117_0ced86292f_m.jpg" alt="" /></a><br />Shungite (Zaonezhskaya Formation, middle Paleoproterozoic, 1.98-2.09 Ga; Shun'ga River area, northwestern Russia) 19 / James St. John</span>

サイズ変更など

Sulfidic basaltic lapillistone (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711 to 2.719 Ga; drill cores at the Potter Mine, east of Timmins, Ontario, Canada) 1
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/47088767584.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/47088767584_0637cacaf0_m.jpg" alt="" /></a><br />Sulfidic basaltic lapillistone (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711 to 2.719 Ga; drill cores at the Potter Mine, east of Timmins, Ontario, Canada) 1 / James St. John</span>

サイズ変更など

Metamorphosed pillow basalt (Ely Greenstone, Neoarchean, ~2.722 Ga; large glacial erratic along Main Street, Ely, Minnesota, USA) 18
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/20831571694.html" target="_blank"><img src="http://farm6.static.flickr.com/5660/20831571694_2c663e1f6d_m.jpg" alt="" /></a><br />Metamorphosed pillow basalt (Ely Greenstone, Neoarchean, ~2.722 Ga; large glacial erratic along Main Street, Ely, Minnesota, USA) 18 / James St. John</span>

サイズ変更など

Copper ore (Ertsberg Copper-Gold Skarn Deposit, Late Pliocene, ~3 Ma; Ertsberg Mine, New Guinea) 1
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/49252351257.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49252351257_414d32355f_m.jpg" alt="" /></a><br />Copper ore (Ertsberg Copper-Gold Skarn Deposit, Late Pliocene, ~3 Ma; Ertsberg Mine, New Guinea) 1 / James St. John</span>

サイズ変更など

Metamorphosed pillow basalt (Ely Greenstone, Neoarchean, ~2.722 Ga; large glacial erratic along Main Street, Ely, Minnesota, USA) 16
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/20831596894.html" target="_blank"><img src="http://farm6.static.flickr.com/5814/20831596894_5a67ca0634_m.jpg" alt="" /></a><br />Metamorphosed pillow basalt (Ely Greenstone, Neoarchean, ~2.722 Ga; large glacial erratic along Main Street, Ely, Minnesota, USA) 16 / James St. John</span>

サイズ変更など

Kyanitic eclogite (Late Cretaceous, 90-95 Ma; near Fost, Slovenska Bistrica Municipality, Slovenia) 4
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/49202217456.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49202217456_729741b4e6_m.jpg" alt="" /></a><br />Kyanitic eclogite (Late Cretaceous, 90-95 Ma; near Fost, Slovenska Bistrica Municipality, Slovenia) 4 / James St. John</span>

サイズ変更など

Metamorphosed pillow basalt (Ely Greenstone, Neoarchean, ~2.722 Ga; large glacial erratic along Main Street, Ely, Minnesota, USA) 2
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/21443474902.html" target="_blank"><img src="http://farm1.static.flickr.com/611/21443474902_240fa98ed6_m.jpg" alt="" /></a><br />Metamorphosed pillow basalt (Ely Greenstone, Neoarchean, ~2.722 Ga; large glacial erratic along Main Street, Ely, Minnesota, USA) 2 / James St. John</span>

サイズ変更など

Muscovitic-serpentinic marble (Precambrian; Black Hills Porcelain Clay and Marble Mining Company Quarry, Custer State Park, Black Hills, South Dakota, USA) 13
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/23930835382.html" target="_blank"><img src="http://farm2.static.flickr.com/1496/23930835382_714e6e6dae_m.jpg" alt="" /></a><br />Muscovitic-serpentinic marble (Precambrian; Black Hills Porcelain Clay and Marble Mining Company Quarry, Custer State Park, Black Hills, South Dakota, USA) 13 / James St. John</span>

サイズ変更など

Sulfidic hyaloclastite (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711 to 2.719 Ga; drill core at the Potter Mine, east of Timmins, Ontario, Canada) 1
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/33995485978.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/33995485978_4cae1e54c2_m.jpg" alt="" /></a><br />Sulfidic hyaloclastite (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711 to 2.719 Ga; drill core at the Potter Mine, east of Timmins, Ontario, Canada) 1 / James St. John</span>

サイズ変更など

Chrysotile (Thetford Mines Ophiolite Complex, Ordovician; Thetford, Quebec, Canada) 1
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/50615998307.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50615998307_5952d67068_m.jpg" alt="" /></a><br />Chrysotile (Thetford Mines Ophiolite Complex, Ordovician; Thetford, Quebec, Canada) 1 / James St. John</span>

サイズ変更など

Meta-gabbro (Kings River Ophiolite, Early Ordovician, ~484 Ma; Fresno County, California, USA) 3
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/54374612658.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/54374612658_bd14e12286_m.jpg" alt="" /></a><br />Meta-gabbro (Kings River Ophiolite, Early Ordovician, ~484 Ma; Fresno County, California, USA) 3 / James St. John</span>

サイズ変更など

Lapis lazuli (lazuritic metamorphite) (Sar-e-Sang Deposit, Sakhi Formation, Precambrian, 2.4-2.7 Ga (?); Sar-e-Sang Mining District, Hindu-Kush Mountains, Afghanistan) 10
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/49167089247.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49167089247_357ee73333_m.jpg" alt="" /></a><br />Lapis lazuli (lazuritic metamorphite) (Sar-e-Sang Deposit, Sakhi Formation, Precambrian, 2.4-2.7 Ga (?); Sar-e-Sang Mining District, Hindu-Kush Mountains, Afghanistan) 10 / James St. John</span>

サイズ変更など

Greenstone (metagabbro) (metamorphism at ~2.7 Ga, Neoarchean; Rt. 169 roadcut south of Peyla, Minnesota, USA) 1
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/23068991659.html" target="_blank"><img src="http://farm1.static.flickr.com/639/23068991659_f69b646065_m.jpg" alt="" /></a><br />Greenstone (metagabbro) (metamorphism at ~2.7 Ga, Neoarchean; Rt. 169 roadcut south of Peyla, Minnesota, USA) 1 / James St. John</span>

サイズ変更など

Polymetallic massive sulfide (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711 to 2.719 Ga; drill core at the Potter Mine, east of Timmins, Ontario, Canada) 20
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/40908935873.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/40908935873_b59971538c_m.jpg" alt="" /></a><br />Polymetallic massive sulfide (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711 to 2.719 Ga; drill core at the Potter Mine, east of Timmins, Ontario, Canada) 20 / James St. John</span>

サイズ変更など

Polymetallic massive sulfide (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711 to 2.719 Ga; drill core at the Potter Mine, east of Timmins, Ontario, Canada) 4
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/33995475498.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/33995475498_0e0abd46d8_m.jpg" alt="" /></a><br />Polymetallic massive sulfide (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711 to 2.719 Ga; drill core at the Potter Mine, east of Timmins, Ontario, Canada) 4 / James St. John</span>

サイズ変更など

Muscovitic-serpentinic marble (Precambrian; Black Hills Porcelain Clay and Marble Mining Company Quarry, Custer State Park, Black Hills, South Dakota, USA) 22
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/23671090699.html" target="_blank"><img src="http://farm2.static.flickr.com/1712/23671090699_d8d2e0f576_m.jpg" alt="" /></a><br />Muscovitic-serpentinic marble (Precambrian; Black Hills Porcelain Clay and Marble Mining Company Quarry, Custer State Park, Black Hills, South Dakota, USA) 22 / James St. John</span>

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Anyolite (corundum-amphibole zoisitite) (Neoproterozoic; Mundarara Mine, about 27 km west of Longido, Tanzania) 8
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/49144234192.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49144234192_e623491ea0_m.jpg" alt="" /></a><br />Anyolite (corundum-amphibole zoisitite) (Neoproterozoic; Mundarara Mine, about 27 km west of Longido, Tanzania) 8 / James St. John</span>

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Serpentinite (Red Lodge Chromite District, Precambrian; Rock Creek Canyon, Beartooth Mountains, Montana, USA)
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/31406130555.html" target="_blank"><img src="http://farm6.static.flickr.com/5631/31406130555_c55798d5d2_m.jpg" alt="" /></a><br />Serpentinite (Red Lodge Chromite District, Precambrian; Rock Creek Canyon, Beartooth Mountains, Montana, USA) / James St. John</span>

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Polymetallic massive sulfide (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711 to 2.719 Ga; drill core at the Potter Mine, east of Timmins, Ontario, Canada) 16
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/47085999314.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/47085999314_a9d1d83d93_m.jpg" alt="" /></a><br />Polymetallic massive sulfide (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711 to 2.719 Ga; drill core at the Potter Mine, east of Timmins, Ontario, Canada) 16 / James St. John</span>

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Metamorphosed pillow basalt (Ely Greenstone, Neoarchean, ~2.722 Ga; large glacial erratic along Main Street, Ely, Minnesota, USA) 23
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/21267311409.html" target="_blank"><img src="http://farm6.static.flickr.com/5670/21267311409_5867ae084c_m.jpg" alt="" /></a><br />Metamorphosed pillow basalt (Ely Greenstone, Neoarchean, ~2.722 Ga; large glacial erratic along Main Street, Ely, Minnesota, USA) 23 / James St. John</span>

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Quartzite (Sioux Quartzite, Paleoproterozoic, 1.65 to 1.70 Ga; city of Sioux Falls, Transcontinental Arch, South Dakota, USA) 11
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/51433945320.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51433945320_08430c8876_m.jpg" alt="" /></a><br />Quartzite (Sioux Quartzite, Paleoproterozoic, 1.65 to 1.70 Ga; city of Sioux Falls, Transcontinental Arch, South Dakota, USA) 11 / James St. John</span>

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Polymetallic massive sulfide (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711 to 2.719 Ga; drill cores at the Potter Mine, east of Timmins, Ontario, Canada) 31
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/40911832063.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/40911832063_86b1afd96d_m.jpg" alt="" /></a><br />Polymetallic massive sulfide (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711 to 2.719 Ga; drill cores at the Potter Mine, east of Timmins, Ontario, Canada) 31 / James St. John</span>

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Gneiss (Archean; Ennis Lake North roadcut, Madison County, Montana, USA) 1
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/44800968564.html" target="_blank"><img src="http://farm2.static.flickr.com/1930/44800968564_ca8ffed416_m.jpg" alt="" /></a><br />Gneiss (Archean; Ennis Lake North roadcut, Madison County, Montana, USA) 1 / James St. John</span>

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Metachert (Arkansas Novaculite, Devonian-Mississippian; ZigZag Mountains, Arkansas, USA) 43
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/51730076992.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51730076992_ed3d6f1d23_m.jpg" alt="" /></a><br />Metachert (Arkansas Novaculite, Devonian-Mississippian; ZigZag Mountains, Arkansas, USA) 43 / James St. John</span>

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Hematite-turgite 1
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/54509327646.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/54509327646_3441c3244b_m.jpg" alt="" /></a><br />Hematite-turgite 1 / James St. John</span>

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Metamorphosed pillow basalt (Ely Greenstone, Neoarchean, ~2.722 Ga; Rt. 169 roadcut just west of Ely, Minnesota, USA) 9
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/21536183561.html" target="_blank"><img src="http://farm1.static.flickr.com/688/21536183561_0e42d403a2_m.jpg" alt="" /></a><br />Metamorphosed pillow basalt (Ely Greenstone, Neoarchean, ~2.722 Ga; Rt. 169 roadcut just west of Ely, Minnesota, USA) 9 / James St. John</span>

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Hard kaolinite (Quaternary; Huntley Kaolinite Mine, Mono County, California, USA) 3
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/51158165742.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51158165742_2b23be7f99_m.jpg" alt="" /></a><br />Hard kaolinite (Quaternary; Huntley Kaolinite Mine, Mono County, California, USA) 3 / James St. John</span>

サイズ変更など

Polymetallic massive sulfide (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711 to 2.719 Ga; drill cores at the Potter Mine, east of Timmins, Ontario, Canada) 29
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/47878240991.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/47878240991_237383f477_m.jpg" alt="" /></a><br />Polymetallic massive sulfide (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711 to 2.719 Ga; drill cores at the Potter Mine, east of Timmins, Ontario, Canada) 29 / James St. John</span>

サイズ変更など

Atelopus glyphus juvenile in Amphibian Rescue Pod Gamboa
by brian.gratwicke

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/6873444085.html" target="_blank"><img src="http://farm8.static.flickr.com/7063/6873444085_678c21672a_m.jpg" alt="" /></a><br />Atelopus glyphus juvenile in Amphibian Rescue Pod Gamboa / brian.gratwicke</span>

サイズ変更など

Soapstone (quarry near Francestown, New Hampshire, USA) 1
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/41043144565.html" target="_blank"><img src="http://farm1.static.flickr.com/965/41043144565_eeb9a71592_m.jpg" alt="" /></a><br />Soapstone (quarry near Francestown, New Hampshire, USA) 1 / James St. John</span>

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Hematite rock (Biwabik Iron-Formation, Paleoproterozoic, ~1.878 Ga; Thunderbird Mine, Mesabi Iron Range, Minnesota, USA) 1
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/34666757885.html" target="_blank"><img src="http://farm5.static.flickr.com/4180/34666757885_330b004789_m.jpg" alt="" /></a><br />Hematite rock (Biwabik Iron-Formation, Paleoproterozoic, ~1.878 Ga; Thunderbird Mine, Mesabi Iron Range, Minnesota, USA) 1 / James St. John</span>

サイズ変更など

Metamorphosed pillow basalt (Ely Greenstone, Neoarchean, ~2.722 Ga; large glacial erratic along Main Street, Ely, Minnesota, USA) 19
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/21266201740.html" target="_blank"><img src="http://farm6.static.flickr.com/5827/21266201740_afd499bd54_m.jpg" alt="" /></a><br />Metamorphosed pillow basalt (Ely Greenstone, Neoarchean, ~2.722 Ga; large glacial erratic along Main Street, Ely, Minnesota, USA) 19 / James St. John</span>

サイズ変更など

Magnetitic serpentinite (East Dover Ultramafic Body, Ordovician; Adams Brook, east of East Dover, Vermont, USA) 1
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/32577556038.html" target="_blank"><img src="http://farm8.static.flickr.com/7807/32577556038_eecef8f29e_m.jpg" alt="" /></a><br />Magnetitic serpentinite (East Dover Ultramafic Body, Ordovician; Adams Brook, east of East Dover, Vermont, USA) 1 / James St. John</span>

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Polymetallic massive sulfide (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711 to 2.719 Ga; drill cores at the Potter Mine, east of Timmins, Ontario, Canada) 27
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/46962006025.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/46962006025_756d3d88d9_m.jpg" alt="" /></a><br />Polymetallic massive sulfide (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711 to 2.719 Ga; drill cores at the Potter Mine, east of Timmins, Ontario, Canada) 27 / James St. John</span>

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Sulfidic serpentintite (platinum-palladium ore) (Johns-Manville Reef, Stillwater Complex, Neoarchean, 2.71 Ga; Stillwater Mine, Beartooth Mountains, Montana, USA) 12
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/50859229968.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50859229968_c6b3cb788e_m.jpg" alt="" /></a><br />Sulfidic serpentintite (platinum-palladium ore) (Johns-Manville Reef, Stillwater Complex, Neoarchean, 2.71 Ga; Stillwater Mine, Beartooth Mountains, Montana, USA) 12 / James St. John</span>

サイズ変更など

Polymetallic massive sulfide (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711 to 2.719 Ga; drill core at the Potter Mine, east of Timmins, Ontario, Canada) 21
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/40911655513.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/40911655513_5f06623d53_m.jpg" alt="" /></a><br />Polymetallic massive sulfide (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711 to 2.719 Ga; drill core at the Potter Mine, east of Timmins, Ontario, Canada) 21 / James St. John</span>

サイズ変更など

Serpentinite (Livengood Ophiolite, Early Cambrian; near Livengood, Alaska, USA) 7
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/51741819600.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51741819600_74f0ea372c_m.jpg" alt="" /></a><br />Serpentinite (Livengood Ophiolite, Early Cambrian; near Livengood, Alaska, USA) 7 / James St. John</span>

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Banded iron formation (Goldman Meadows Formation, Mesoarchean; Atlantic City Iron Mine, South Pass, Wyoming, USA) 2
by James St. John

クリエイティブ・コモンズ表示 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/30749219994.html" target="_blank"><img src="http://farm6.static.flickr.com/5551/30749219994_a263e603a5_m.jpg" alt="" /></a><br />Banded iron formation (Goldman Meadows Formation, Mesoarchean; Atlantic City Iron Mine, South Pass, Wyoming, USA) 2 / James St. John</span>

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