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pyroxene

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Peridotite mantle xenolith in vesicular phonotephrite (Peridot Mesa Flow, Middle Pleistocene, 580 ka; Peridot Mesa, San Carlos Volcanic Field, Arizona, USA) 4
Peridotite mantle xenolith in vesicular phonotephrite (Peridot Mesa Flow, Middle Pleistocene, 580 ka; Peridot Mesa, San Carlos Volcanic Field, Arizona, USA) 4
by James St. John

クリエイティブ・コモンズ 表示 2.1

Vesicular basalt (Quaternary; Snake River Plain, Idaho, USA) 4
Vesicular basalt (Quaternary; Snake River Plain, Idaho, USA) 4
by James St. John

クリエイティブ・コモンズ 表示 2.1

Chromian jade (Hpakan-Tawmaw Jade Tract, Late Jurassic, 147 Ma; Tawmaw, Myitkyina-Mogaung District, western Kachin State, Indo-Burma Range, northern Burma) 3
Chromian jade (Hpakan-Tawmaw Jade Tract, Late Jurassic, 147 Ma; Tawmaw, Myitkyina-Mogaung District, western Kachin State, Indo-Burma Range, northern Burma) 3
by James St. John

クリエイティブ・コモンズ 表示 2.1


Crater Lake Caldera & Mount Scott Volcano (Oregon, USA) 1
Crater Lake Caldera & Mount Scott Volcano (Oregon, USA) 1
by James St. John

クリエイティブ・コモンズ 表示 2.1

Porphyritic basalt (5.3 cm across)
Porphyritic basalt (5.3 cm across)
by James St. John

クリエイティブ・コモンズ 表示 2.1

Shonkinite (Mountain Pass Alkaline Suite, Mesoproterozoic, 1.40-1.41 Ga; Mountain Pass Rare Earth Element District, California, USA) 3
Shonkinite (Mountain Pass Alkaline Suite, Mesoproterozoic, 1.40-1.41 Ga; Mountain Pass Rare Earth Element District, California, USA) 3
by James St. John

クリエイティブ・コモンズ 表示 2.1


Clinker-bed breccia (Wasatch Formation, Lower Eocene; coal fire metamorphism at 19 ka, Late Pleistocene; large block at Interstate 90 west-bound hilltop rest area, east of Buffalo, Powder River Basin, Wyoming, USA) 9
Clinker-bed breccia (Wasatch Formation, Lower Eocene; coal fire metamorphism at 19 ka, Late Pleistocene; large block at Interstate 90 west-bound hilltop rest area, east of Buffalo, Powder River Basin, Wyoming, USA) 9
by James St. John

クリエイティブ・コモンズ 表示 2.1

Impala Black Granite (gabbronorite) (Bushveld Complex, 2.054-2.061 Ga, Paleoproterozoic; north of Rustenburg, North West Province, South Africa) 1
Impala Black Granite (gabbronorite) (Bushveld Complex, 2.054-2.061 Ga, Paleoproterozoic; north of Rustenburg, North West Province, South Africa) 1
by James St. John

クリエイティブ・コモンズ 表示 2.1

Vesicular olivine orendite lamproite lava (Lower Pleistocene, 1.30 to 1.37 Ma; Black Rock, eastern Leucite Hills Volcanic Province, northeast of the town of Superior, southwestern Wyoming, USA) 2
Vesicular olivine orendite lamproite lava (Lower Pleistocene, 1.30 to 1.37 Ma; Black Rock, eastern Leucite Hills Volcanic Province, northeast of the town of Superior, southwestern Wyoming, USA) 2
by James St. John

クリエイティブ・コモンズ 表示 2.1


Reverse fault in inch-scale layered plagioclase feldspar & pyroxene (Stillwater Complex, Neoarchean, 2.71 Ga; near the Stillwater Mine, Beartooth Mountains, Montana, USA) 2
Reverse fault in inch-scale layered plagioclase feldspar & pyroxene (Stillwater Complex, Neoarchean, 2.71 Ga; near the Stillwater Mine, Beartooth Mountains, Montana, USA) 2
by James St. John

クリエイティブ・コモンズ 表示 2.1

Spinifex komatiite sills in cumulate komatiite lava flow (Upper Komatiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711-2.717 Ga; Pyke Hill, near the Potter Mine, east of Timmins, Ontario, Canada) 15
Spinifex komatiite sills in cumulate komatiite lava flow (Upper Komatiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711-2.717 Ga; Pyke Hill, near the Potter Mine, east of Timmins, Ontario, Canada) 15
by James St. John

クリエイティブ・コモンズ 表示 2.1

Calc-silicate rocks & reaction rim with metabentonite (Gouverneur Marble, Mesoproterozoic, ~1.1 Ga; Route 11 roadcut southwest of Canton, New York State, USA) 5
Calc-silicate rocks & reaction rim with metabentonite (Gouverneur Marble, Mesoproterozoic, ~1.1 Ga; Route 11 roadcut southwest of Canton, New York State, USA) 5
by James St. John

クリエイティブ・コモンズ 表示 2.1


Minette (Upper Oligocene, 25 Ma; Narbona Pass Maar Volcano, summit of Chuska Mountains, Navajo Volcanic Field, New Mexico, USA) 1
Minette (Upper Oligocene, 25 Ma; Narbona Pass Maar Volcano, summit of Chuska Mountains, Navajo Volcanic Field, New Mexico, USA) 1
by James St. John

クリエイティブ・コモンズ 表示 2.1

Labrador Antique Granite (anorthosite, Rogaland Anorthosite Complex, Mesoproterozoic, 929-932 Ma; near Egersund, Norway)
Labrador Antique Granite (anorthosite, Rogaland Anorthosite Complex, Mesoproterozoic, 929-932 Ma; near Egersund, Norway)
by James St. John

クリエイティブ・コモンズ 表示 2.1

Clinker-bed breccia (Wasatch Formation, Lower Eocene; coal fire metamorphism at 19 ka, Late Pleistocene; large block at Interstate 90 west-bound hilltop rest area, east of Buffalo, Powder River Basin, Wyoming, USA) 3
Clinker-bed breccia (Wasatch Formation, Lower Eocene; coal fire metamorphism at 19 ka, Late Pleistocene; large block at Interstate 90 west-bound hilltop rest area, east of Buffalo, Powder River Basin, Wyoming, USA) 3
by James St. John

クリエイティブ・コモンズ 表示 2.1


Orbicular monzodiorite (eastern Davie County, North Carolina, USA) 3
Orbicular monzodiorite (eastern Davie County, North Carolina, USA) 3
by James St. John

クリエイティブ・コモンズ 表示 2.1

Andesite (1997 lava from Soufriere Hills Volcano, Montserrat, Lesser Antilles Volcanic Arc, eastern Caribbean Sea) 3
Andesite (1997 lava from Soufriere Hills Volcano, Montserrat, Lesser Antilles Volcanic Arc, eastern Caribbean Sea) 3
by James St. John

クリエイティブ・コモンズ 表示 2.1

Emerald Pearl Granite (larvikite) (Larvik Batholith, 292-298 Ma, Early Permian; near Larvik, Norway)
Emerald Pearl Granite (larvikite) (Larvik Batholith, 292-298 Ma, Early Permian; near Larvik, Norway)
by James St. John

クリエイティブ・コモンズ 表示 2.1


Orbicular monzodiorite (eastern Davie County, North Carolina, USA) 4
Orbicular monzodiorite (eastern Davie County, North Carolina, USA) 4
by James St. John

クリエイティブ・コモンズ 表示 2.1

Diorite (Devonian; Hulls Cove, Mt. Desert Island, Maine, USA) 2
Diorite (Devonian; Hulls Cove, Mt. Desert Island, Maine, USA) 2
by James St. John

クリエイティブ・コモンズ 表示 2.1

Clinker (Wasatch Formation, Lower Eocene; coal fire metamorphism at 19 ka, Late Pleistocene; large block at Interstate 90 west-bound hilltop rest area, east of Buffalo, Powder River Basin, Wyoming, USA) 3
Clinker (Wasatch Formation, Lower Eocene; coal fire metamorphism at 19 ka, Late Pleistocene; large block at Interstate 90 west-bound hilltop rest area, east of Buffalo, Powder River Basin, Wyoming, USA) 3
by James St. John

クリエイティブ・コモンズ 表示 2.1


Re-exhumed sub-fossil tree (died late 1700s) (Sandy River, Oxbow Park, Oregon, USA) 42
Re-exhumed sub-fossil tree (died late 1700s) (Sandy River, Oxbow Park, Oregon, USA) 42
by James St. John

クリエイティブ・コモンズ 表示 2.1

Clinker horizon (Wasatch Formation, Lower Eocene; coal fire metamorphism at 19 ka, Late Pleistocene; hills east of Buffalo, Powder River Basin, Wyoming, USA)
Clinker horizon (Wasatch Formation, Lower Eocene; coal fire metamorphism at 19 ka, Late Pleistocene; hills east of Buffalo, Powder River Basin, Wyoming, USA)
by James St. John

クリエイティブ・コモンズ 表示 2.1

Labradorite (Wiborg Batholith, 1633 Ma; Kymi Province, Finland) 4
Labradorite (Wiborg Batholith, 1633 Ma; Kymi Province, Finland) 4
by James St. John

クリエイティブ・コモンズ 表示 2.1


Dune slip face (Oregon Dunes, Florence, Oregon, USA) 1
Dune slip face (Oregon Dunes, Florence, Oregon, USA) 1
by James St. John

クリエイティブ・コモンズ 表示 2.1

Ison Creek Kimberlite (Elliott County Peridotite, Late Cretaceous, 75 Ma; west of Stephens, Elliott County, Kentucky, USA) 23
Ison Creek Kimberlite (Elliott County Peridotite, Late Cretaceous, 75 Ma; west of Stephens, Elliott County, Kentucky, USA) 23
by James St. John

クリエイティブ・コモンズ 表示 2.1

Volga Blue Granite (anorthosite, Volodarsk-Volhynsky Intrusion, Korosten Complex, Paleoproterozoic, 1.758-1.760 Ga; Zhitomir Province, Ukraine) 3
Volga Blue Granite (anorthosite, Volodarsk-Volhynsky Intrusion, Korosten Complex, Paleoproterozoic, 1.758-1.760 Ga; Zhitomir Province, Ukraine) 3
by James St. John

クリエイティブ・コモンズ 表示 2.1


Bronzite in sulfidic serpentintite (platinum-palladium ore) (Johns-Manville Reef, Stillwater Complex, Neoarchean, 2.71 Ga; Stillwater Mine, Beartooth Mountains, Montana, USA) 3
Bronzite in sulfidic serpentintite (platinum-palladium ore) (Johns-Manville Reef, Stillwater Complex, Neoarchean, 2.71 Ga; Stillwater Mine, Beartooth Mountains, Montana, USA) 3
by James St. John

クリエイティブ・コモンズ 表示 2.1

Gabbroic anorthosite to anorthositic gabbro (anorthosite series, Duluth Complex, Mesoproterozoic, 1099 Ma; Merritt Creek West Skyline Parkway roadcut, Duluth, Minnesota, USA) 18
Gabbroic anorthosite to anorthositic gabbro (anorthosite series, Duluth Complex, Mesoproterozoic, 1099 Ma; Merritt Creek West Skyline Parkway roadcut, Duluth, Minnesota, USA) 18
by James St. John

クリエイティブ・コモンズ 表示 2.1

Détails d'un métagabbro du Chenaillet (faciès schiste vert)
Détails d'un métagabbro du Chenaillet (faciès schiste vert)
by ffigon

クリエイティブ・コモンズ 表示-継承 2.1


Nara Brown Granite (charnockite/farsundite/quartz mangerite) (Riviere-a-Pierre Plutonic Suite, Mesoproterozoic, ~1.1 Ga; north of Riviere-a-Pierre, Quebec, Canada)
Nara Brown Granite (charnockite/farsundite/quartz mangerite) (Riviere-a-Pierre Plutonic Suite, Mesoproterozoic, ~1.1 Ga; north of Riviere-a-Pierre, Quebec, Canada)
by James St. John

クリエイティブ・コモンズ 表示 2.1

Sulfidic bronzitite (platinum-palladium ore) (Johns-Manville Reef, Stillwater Complex, Neoarchean, 2.71 Ga; Stillwater Mine, Beartooth Mountains, Montana, USA) 3
Sulfidic bronzitite (platinum-palladium ore) (Johns-Manville Reef, Stillwater Complex, Neoarchean, 2.71 Ga; Stillwater Mine, Beartooth Mountains, Montana, USA) 3
by James St. John

クリエイティブ・コモンズ 表示 2.1

Clinker-bed breccia (Wasatch Formation, Lower Eocene; coal fire metamorphism at 19 ka, Late Pleistocene; large block at Interstate 90 west-bound hilltop rest area, east of Buffalo, Powder River Basin, Wyoming, USA) 5
Clinker-bed breccia (Wasatch Formation, Lower Eocene; coal fire metamorphism at 19 ka, Late Pleistocene; large block at Interstate 90 west-bound hilltop rest area, east of Buffalo, Powder River Basin, Wyoming, USA) 5
by James St. John

クリエイティブ・コモンズ 表示 2.1


Retrograde eclogite (Zermatt-Saas Ophiolite, Eocene prograde metamorphism, about 40-50 Ma; near Zermatt, Switzerland) 1
Retrograde eclogite (Zermatt-Saas Ophiolite, Eocene prograde metamorphism, about 40-50 Ma; near Zermatt, Switzerland) 1
by James St. John

クリエイティブ・コモンズ 表示 2.1

Dikes intruding tillite (Nipissing Diabase & Gowganda Formation, Paleoproterozoic; Percival Lake roadcut, Ontario, Canada) 24
Dikes intruding tillite (Nipissing Diabase & Gowganda Formation, Paleoproterozoic; Percival Lake roadcut, Ontario, Canada) 24
by James St. John

クリエイティブ・コモンズ 表示 2.1

Metakomatiite lava flows (Upper Komatiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711-2.719 Ga; Pyke Hill, near the Potter Mine, east of Timmins, Ontario, Canada) 8
Metakomatiite lava flows (Upper Komatiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711-2.719 Ga; Pyke Hill, near 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


Clinker-bed breccia (Wasatch Formation, Lower Eocene; coal fire metamorphism at 19 ka, Late Pleistocene; large block at Interstate 90 west-bound hilltop rest area, east of Buffalo, Powder River Basin, Wyoming, USA) 1
Clinker-bed breccia (Wasatch Formation, Lower Eocene; coal fire metamorphism at 19 ka, Late Pleistocene; large block at Interstate 90 west-bound hilltop rest area, east of Buffalo, Powder River Basin, Wyoming, USA) 1
by James St. John

クリエイティブ・コモンズ 表示 2.1

Clinker (Wasatch Formation, Lower Eocene; coal fire metamorphism at 19 ka, Late Pleistocene; large block at Interstate 90 west-bound hilltop rest area, east of Buffalo, Powder River Basin, Wyoming, USA) 2
Clinker (Wasatch Formation, Lower Eocene; coal fire metamorphism at 19 ka, Late Pleistocene; large block at Interstate 90 west-bound hilltop rest area, east of Buffalo, Powder River Basin, Wyoming, USA) 2
by James St. John

クリエイティブ・コモンズ 表示 2.1

Clinker outcrop (Wasatch Formation, Lower Eocene; coal fire metamorphism at 19 ka, Late Pleistocene; Interstate 90 west-bound hilltop rest area, east of Buffalo, Powder River Basin, Wyoming, USA) 2
Clinker outcrop (Wasatch Formation, Lower Eocene; coal fire metamorphism at 19 ka, Late Pleistocene; Interstate 90 west-bound hilltop rest area, east of Buffalo, Powder River Basin, Wyoming, USA) 2
by James St. John

クリエイティブ・コモンズ 表示 2.1


Ijolite (Oka Carbonatite Complex, Early Cretaceous, 124-125 Ma; Oka Niobium Mine, Quebec, Canada)
Ijolite (Oka Carbonatite Complex, Early Cretaceous, 124-125 Ma; Oka Niobium Mine, Quebec, Canada)
by James St. John

クリエイティブ・コモンズ 表示 2.1

Vesicular metakomatiite (serpentinized) (Upper Komatiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711-2.717 Ga; west-southwest of the Potter Mine, east of Timmins, Ontario, Canada) 6
Vesicular metakomatiite (serpentinized) (Upper Komatiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711-2.717 Ga; west-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

Olivine diabase (Silver Creek Cliff Sill, Proterozoic; Silver Creek Cliff, northeastern Minnesota, USA) 7
Olivine diabase (Silver Creek Cliff Sill, Proterozoic; Silver Creek Cliff, northeastern Minnesota, USA) 7
by James St. John

クリエイティブ・コモンズ 表示 2.1


Metakomatiite lava flow (Upper Komatiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711-2.719 Ga; Pyke Hill, near the Potter Mine, east of Timmins, Ontario, Canada) 15
Metakomatiite lava flow (Upper Komatiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711-2.719 Ga; Pyke Hill, near the Potter Mine, east of Timmins, Ontario, Canada) 15
by James St. John

クリエイティブ・コモンズ 表示 2.1

Columnar-jointed komatiite lava flow (Upper Komatiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711-2.717 Ga; southwest of the Potter Mine, east of Timmins, Ontario, Canada) 3
Columnar-jointed komatiite lava flow (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

Volga Blue Granite (anorthosite, Volodarsk-Volhynsky Intrusion, Korosten Complex, Paleoproterozoic, 1.758-1.760 Ga; Zhitomir Province, Ukraine) 2
Volga Blue Granite (anorthosite, Volodarsk-Volhynsky Intrusion, Korosten Complex, Paleoproterozoic, 1.758-1.760 Ga; Zhitomir Province, Ukraine) 2
by James St. John

クリエイティブ・コモンズ 表示 2.1


Olivine diabase (Lafayette Bluff Sill, Proterozoic; Lafayette Bluff Tunnel, northeastern Minnesota, USA) 11
Olivine diabase (Lafayette Bluff Sill, Proterozoic; Lafayette Bluff Tunnel, northeastern Minnesota, USA) 11
by James St. John

クリエイティブ・コモンズ 表示 2.1

Re-exhumed sub-fossil trees (died late 1700s) (Sandy River, Oxbow Park, Oregon, USA) 37
Re-exhumed sub-fossil trees (died late 1700s) (Sandy River, Oxbow Park, Oregon, USA) 37
by James St. John

クリエイティブ・コモンズ 表示 2.1

Porphyritic nepheline syenite (float boulder from summit spires of Mt. Kenya Volcano, south-central Kenya, East African Rift Valley)
Porphyritic nepheline syenite (float boulder from summit spires of Mt. Kenya Volcano, south-central Kenya, East African Rift Valley)
by James St. John

クリエイティブ・コモンズ 表示 2.1


Bronzitic anorthosite (Stillwater Complex, Neoarchean, 2.71 Ga; mine core dump, Stillwater Mine, Beartooth Mountains, Montana, USA) 2
Bronzitic anorthosite (Stillwater Complex, Neoarchean, 2.71 Ga; mine core dump, Stillwater Mine, Beartooth Mountains, Montana, USA) 2
by James St. John

クリエイティブ・コモンズ 表示 2.1

Spinel lherzolite - Neoproterozoic-aged xenolith in Pleistocene basalt (Mt. Leura Complex, Newer Volcanics Province; Mt. Leura, southwestern Victoria, southeastern Australia)
Spinel lherzolite - Neoproterozoic-aged xenolith in Pleistocene basalt (Mt. Leura Complex, Newer Volcanics Province; Mt. Leura, southwestern Victoria, southeastern Australia)
by James St. John

クリエイティブ・コモンズ 表示 2.1

Bronzite in sulfidic serpentintite (platinum-palladium ore) (Johns-Manville Reef, Stillwater Complex, Neoarchean, 2.71 Ga; Stillwater Mine, Beartooth Mountains, Montana, USA) 2
Bronzite in sulfidic serpentintite (platinum-palladium ore) (Johns-Manville Reef, Stillwater Complex, Neoarchean, 2.71 Ga; Stillwater Mine, Beartooth Mountains, Montana, USA) 2
by James St. John

クリエイティブ・コモンズ 表示 2.1


Chromian jade (Hpakan-Tawmaw Jade Tract, Late Jurassic, 147 Ma; Tawmaw, Myitkyina-Mogaung District, western Kachin State, Indo-Burma Range, northern Burma) 2
Chromian jade (Hpakan-Tawmaw Jade Tract, Late Jurassic, 147 Ma; Tawmaw, Myitkyina-Mogaung District, western Kachin State, Indo-Burma Range, northern Burma) 2
by James St. John

クリエイティブ・コモンズ 表示 2.1

Sulfidic basaltic lapillistone (copper ore) (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711 to 2.719 Ga; Potter Mine, east of Timmins, Ontario, Canada) 1
Sulfidic basaltic lapillistone (copper ore) (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711 to 2.719 Ga; 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

Ophitic olivine diabase (Beaver River Diabase, Beaver Bay Complex, Mesoproterozoic, ~1096 Ma; Split Rock Lighthouse, Minnesota, USA) 1
Ophitic olivine diabase (Beaver River Diabase, Beaver Bay Complex, Mesoproterozoic, ~1096 Ma; Split Rock Lighthouse, Minnesota, USA) 1
by James St. John

クリエイティブ・コモンズ 表示 2.1


Layered gabbros (troctolitic series, Duluth Complex, Mesoproterozoic, 1099 Ma; Thomson Hill Information Center Outcrop, Skyline Parkway, Duluth, Minnesota, USA) 5
Layered gabbros (troctolitic series, Duluth Complex, Mesoproterozoic, 1099 Ma; Thomson Hill Information Center Outcrop, Skyline Parkway, Duluth, Minnesota, USA) 5
by James St. John

クリエイティブ・コモンズ 表示 2.1

Massive Pt-Pd-rich sulfide (platinum-palladium ore) (Johns-Manville Reef, Stillwater Complex, Neoarchean, 2.71 Ga; Stillwater Mine, Beartooth Mountains, Montana, USA) 2
Massive Pt-Pd-rich sulfide (platinum-palladium ore) (Johns-Manville Reef, Stillwater Complex, Neoarchean, 2.71 Ga; Stillwater Mine, Beartooth Mountains, Montana, USA) 2
by James St. John

クリエイティブ・コモンズ 表示 2.1

Nelsonite (Laramie Anorthosite Complex, Mesoproterozoic, 1.43 Ga; Sybille Pit, Laramie Range, Wyoming, USA) 2
Nelsonite (Laramie Anorthosite Complex, Mesoproterozoic, 1.43 Ga; Sybille Pit, Laramie Range, Wyoming, USA) 2
by James St. John

クリエイティブ・コモンズ 表示 2.1


Black Pearl Granite (gabbro) (Proterozoic; Guntur District, Andhra Pradesh State, India)
Black Pearl Granite (gabbro) (Proterozoic; Guntur District, Andhra Pradesh State, India)
by James St. John

クリエイティブ・コモンズ 表示 2.1

Calciocarbonatite (sövite) (Oka Carbonatite Complex, Early Cretaceous, 124-125 Ma; Oka Niobium Mine, Quebec, Canada) 1
Calciocarbonatite (sövite) (Oka Carbonatite Complex, Early Cretaceous, 124-125 Ma; Oka Niobium Mine, Quebec, Canada) 1
by James St. John

クリエイティブ・コモンズ 表示 2.1

Olivine melilitite lapillistone (Hegau Volcanic Province, Late Miocene, 10 Ma; Howenegg, Rhine Graben, southwestern Germany) 2
Olivine melilitite lapillistone (Hegau Volcanic Province, Late Miocene, 10 Ma; Howenegg, Rhine Graben, southwestern Germany) 2
by James St. John

クリエイティブ・コモンズ 表示 2.1



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