phenocryst

タグをコピペすると、ブログなどにカンタン貼り付けできます。

各画像のライセンスに従って利用してください。被写体の肖像権、商標・意匠登録等にご注意ください。

詳しくはクリエイティブ・コモンズ・ライセンスの利用についてをご覧ください。

Llao Rock (Crater Lake Caldera, Oregon, USA) 30
by James St. John

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/32157790917.html" target="_blank"><img src="http://farm8.static.flickr.com/7826/32157790917_1eef532a4e_m.jpg" alt="" /></a><br />Llao Rock (Crater Lake Caldera, Oregon, USA) 30 / James St. John</span>

サイズ変更など

Volcanic breccia (Upper Oligocene, 25 Ma; Narbona Pass Maar Volcano, near the summit of the Chuska Mountains, Navajo Volcanic Field, New Mexico, USA) 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/50960635351.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50960635351_f5d034aef8_m.jpg" alt="" /></a><br />Volcanic breccia (Upper Oligocene, 25 Ma; Narbona Pass Maar Volcano, near the summit of the Chuska Mountains, Navajo Volcanic Field, New Mexico, USA) 8 / James St. John</span>

サイズ変更など

Monchiquite lamprophyre dike (Precambrian; Michipicoten River Bridge South roadcut, south of Wawa, Ontario, Canada) 46
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/47926996146.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/47926996146_05ffe0e24b_m.jpg" alt="" /></a><br />Monchiquite lamprophyre dike (Precambrian; Michipicoten River Bridge South roadcut, south of Wawa, Ontario, Canada) 46 / James St. John</span>

サイズ変更など

Partially devitrified rhyolitic obsidian (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, 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/46084070044.html" target="_blank"><img src="http://farm8.static.flickr.com/7800/46084070044_a0b9d2dfe7_m.jpg" alt="" /></a><br />Partially devitrified rhyolitic obsidian (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 13 / James St. John</span>

サイズ変更など

Volcanic breccia (Upper Oligocene, 25 Ma; Narbona Pass Maar Volcano, near the summit of the 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

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/50959934313.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50959934313_c3736cd521_m.jpg" alt="" /></a><br />Volcanic breccia (Upper Oligocene, 25 Ma; Narbona Pass Maar Volcano, near the summit of the Chuska Mountains, Navajo Volcanic Field, New Mexico, USA) 1 / James St. John</span>

サイズ変更など

Porphyritic granite (Giants Range Batholith, Neoarchean, 2.67-2.68 Ga; Rt. 1 roadcut north of the South Kawishiwi River, Minnesota, 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/21431311712.html" target="_blank"><img src="http://farm6.static.flickr.com/5754/21431311712_beef17d3fe_m.jpg" alt="" /></a><br />Porphyritic granite (Giants Range Batholith, Neoarchean, 2.67-2.68 Ga; Rt. 1 roadcut north of the South Kawishiwi River, Minnesota, USA) 11 / James St. John</span>

サイズ変更など

Black porphyritic dacite (upper Holocene, 14 May 1915; Devastated Area, Lassen Volcano National Park, California, USA) 41
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/23724386748.html" target="_blank"><img src="http://farm5.static.flickr.com/4505/23724386748_8a85a71c56_m.jpg" alt="" /></a><br />Black porphyritic dacite (upper Holocene, 14 May 1915; Devastated Area, Lassen Volcano National Park, California, USA) 41 / James St. John</span>

サイズ変更など

Volcanic breccia (Upper Oligocene, 25 Ma; Narbona Pass Maar Volcano, near the summit of the Chuska Mountains, Navajo Volcanic Field, New Mexico, USA) 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/50960635716.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50960635716_4b450f023e_m.jpg" alt="" /></a><br />Volcanic breccia (Upper Oligocene, 25 Ma; Narbona Pass Maar Volcano, near the summit of the Chuska Mountains, Navajo Volcanic Field, New Mexico, USA) 6 / James St. John</span>

サイズ変更など

Llao Rock (Crater Lake Caldera, Oregon, 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/41105239425.html" target="_blank"><img src="http://farm1.static.flickr.com/828/41105239425_540da187e4_m.jpg" alt="" /></a><br />Llao Rock (Crater Lake Caldera, Oregon, USA) 1 / James St. John</span>

サイズ変更など

Lugarite (Lugar Sill, Early Permian, 288 Ma; near Lugar, Ayrshire, Scotland) 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/50595623507.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50595623507_ba22bd6426_m.jpg" alt="" /></a><br />Lugarite (Lugar Sill, Early Permian, 288 Ma; near Lugar, Ayrshire, Scotland) 11 / James St. John</span>

サイズ変更など

Black porphyritic dacite (upper Holocene, 14 May 1915; Devastated Area, Lassen Volcano National Park, California, USA) 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/36905802563.html" target="_blank"><img src="http://farm5.static.flickr.com/4450/36905802563_7e99569299_m.jpg" alt="" /></a><br />Black porphyritic dacite (upper Holocene, 14 May 1915; Devastated Area, Lassen Volcano National Park, California, USA) 6 / James St. John</span>

サイズ変更など

Volcanic breccia (Upper Oligocene, 25 Ma; Narbona Pass Maar Volcano, near the summit of the Chuska Mountains, Navajo Volcanic Field, New Mexico, 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/50959934783.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50959934783_d5ca07f340_m.jpg" alt="" /></a><br />Volcanic breccia (Upper Oligocene, 25 Ma; Narbona Pass Maar Volcano, near the summit of the Chuska Mountains, Navajo Volcanic Field, New Mexico, USA) 7 / James St. John</span>

サイズ変更など

Black porphyritic dacite (upper Holocene, 14 May 1915; Devastated Area, Lassen Volcano National Park, California, 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/37543993412.html" target="_blank"><img src="http://farm5.static.flickr.com/4471/37543993412_7f25861010_m.jpg" alt="" /></a><br />Black porphyritic dacite (upper Holocene, 14 May 1915; Devastated Area, Lassen Volcano National Park, California, USA) 16 / James St. John</span>

サイズ変更など

Phenotrachytic welded tuff (Wall Mountain Tuff, Middle Eocene, 36.73 Ma; Teller County, Colorado, 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/31674554366.html" target="_blank"><img src="http://farm1.static.flickr.com/288/31674554366_af28b01b86_m.jpg" alt="" /></a><br />Phenotrachytic welded tuff (Wall Mountain Tuff, Middle Eocene, 36.73 Ma; Teller County, Colorado, USA) 2 / James St. John</span>

サイズ変更など

Rhyodacite vitrophyre (Llao Rock Rhyodacite, Holocene, ~7.8-7.9 ka; roadcut near Llao Rock, margin of Crater Lake Caldera, Oregon, 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/40833594785.html" target="_blank"><img src="http://farm1.static.flickr.com/872/40833594785_0bab62cd70_m.jpg" alt="" /></a><br />Rhyodacite vitrophyre (Llao Rock Rhyodacite, Holocene, ~7.8-7.9 ka; roadcut near Llao Rock, margin of Crater Lake Caldera, Oregon, USA) 16 / James St. John</span>

サイズ変更など

Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 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/46092941824.html" target="_blank"><img src="http://farm5.static.flickr.com/4817/46092941824_814f712c77_m.jpg" alt="" /></a><br />Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 6 / James St. John</span>

サイズ変更など

Llao Rock (Crater Lake Caldera, Oregon, 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/41285563764.html" target="_blank"><img src="http://farm1.static.flickr.com/826/41285563764_33487265d6_m.jpg" alt="" /></a><br />Llao Rock (Crater Lake Caldera, Oregon, USA) 7 / James St. John</span>

サイズ変更など

Vesicular andesite (Upper Pliocene, 1.9 Ma; Sierra Grande Shield Volcano, Raton-Clayton Volcanic Field, New Mexico, 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/50994950196.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50994950196_1f0908fea3_m.jpg" alt="" /></a><br />Vesicular andesite (Upper Pliocene, 1.9 Ma; Sierra Grande Shield Volcano, Raton-Clayton Volcanic Field, New Mexico, USA) 7 / James St. John</span>

サイズ変更など

Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, 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/46817937031.html" target="_blank"><img src="http://farm8.static.flickr.com/7905/46817937031_603eae581a_m.jpg" alt="" /></a><br />Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 5 / James St. John</span>

サイズ変更など

Sandstone-phonolite intrusive contact (Buck Ranch, Highwood Mountains, 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/49060639223.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49060639223_d3b643c378_m.jpg" alt="" /></a><br />Sandstone-phonolite intrusive contact (Buck Ranch, Highwood Mountains, Montana, USA) 1 / James St. John</span>

サイズ変更など

Vesicular andesite (Upper Pliocene, 1.9 Ma; Sierra Grande Shield Volcano, Raton-Clayton Volcanic Field, New Mexico, 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/50994950366.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50994950366_9d442b4bfe_m.jpg" alt="" /></a><br />Vesicular andesite (Upper Pliocene, 1.9 Ma; Sierra Grande Shield Volcano, Raton-Clayton Volcanic Field, New Mexico, USA) 3 / James St. John</span>

サイズ変更など

Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, 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/46765727362.html" target="_blank"><img src="http://farm5.static.flickr.com/4895/46765727362_5867f40d72_m.jpg" alt="" /></a><br />Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 23 / James St. John</span>

サイズ変更など

Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 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/32942386918.html" target="_blank"><img src="http://farm5.static.flickr.com/4855/32942386918_6fbe947f5b_m.jpg" alt="" /></a><br />Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 8 / James St. John</span>

サイズ変更など

Sunstone (Tertiary; Spectrum Mine, Oregon, 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/51660724696.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51660724696_0d687ce76e_m.jpg" alt="" /></a><br />Sunstone (Tertiary; Spectrum Mine, Oregon, USA) 9 / James St. John</span>

サイズ変更など

Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 28
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/31877675357.html" target="_blank"><img src="http://farm5.static.flickr.com/4896/31877675357_8f8ef352f5_m.jpg" alt="" /></a><br />Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 28 / James St. John</span>

サイズ変更など

Black porphyritic dacite (upper Holocene, 14 May 1915; Devastated Area, Lassen Volcano National Park, California, USA) 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/36906543293.html" target="_blank"><img src="http://farm5.static.flickr.com/4513/36906543293_b3d8f2b322_m.jpg" alt="" /></a><br />Black porphyritic dacite (upper Holocene, 14 May 1915; Devastated Area, Lassen Volcano National Park, California, USA) 30 / James St. John</span>

サイズ変更など

Vesicular andesite (Upper Pliocene, 1.9 Ma; Sierra Grande Shield Volcano, Raton-Clayton Volcanic Field, New Mexico, USA) 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/50994949841.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50994949841_271e24e2ee_m.jpg" alt="" /></a><br />Vesicular andesite (Upper Pliocene, 1.9 Ma; Sierra Grande Shield Volcano, Raton-Clayton Volcanic Field, New Mexico, USA) 4 / James St. John</span>

サイズ変更など

Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, 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/39852720513.html" target="_blank"><img src="http://farm8.static.flickr.com/7827/39852720513_ab6c76f1ee_m.jpg" alt="" /></a><br />Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 2 / James St. John</span>

サイズ変更など

Llao Rock (Crater Lake Caldera, Oregon, USA) 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/28178596698.html" target="_blank"><img src="http://farm1.static.flickr.com/827/28178596698_0f0e7b181f_m.jpg" alt="" /></a><br />Llao Rock (Crater Lake Caldera, Oregon, USA) 29 / James St. John</span>

サイズ変更など

Volcanic breccia (Upper Oligocene, 25 Ma; Narbona Pass Maar Volcano, near the summit of the Chuska Mountains, Navajo Volcanic Field, New Mexico, USA) 17
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/51020849818.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51020849818_9ffbc65369_m.jpg" alt="" /></a><br />Volcanic breccia (Upper Oligocene, 25 Ma; Narbona Pass Maar Volcano, near the summit of the Chuska Mountains, Navajo Volcanic Field, New Mexico, USA) 17 / James St. John</span>

サイズ変更など

Black porphyritic dacite (upper Holocene, 14 May 1915; Devastated Area, Lassen Volcano National Park, California, USA) 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/36865750904.html" target="_blank"><img src="http://farm5.static.flickr.com/4484/36865750904_9bec0c1d22_m.jpg" alt="" /></a><br />Black porphyritic dacite (upper Holocene, 14 May 1915; Devastated Area, Lassen Volcano National Park, California, USA) 20 / James St. John</span>

サイズ変更など

Vesicular andesite (Upper Pliocene, 1.9 Ma; Sierra Grande Shield Volcano, Raton-Clayton Volcanic Field, New Mexico, 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/50994250938.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50994250938_0dd6e5c47d_m.jpg" alt="" /></a><br />Vesicular andesite (Upper Pliocene, 1.9 Ma; Sierra Grande Shield Volcano, Raton-Clayton Volcanic Field, New Mexico, USA) 5 / James St. John</span>

サイズ変更など

Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, 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/46818071421.html" target="_blank"><img src="http://farm8.static.flickr.com/7839/46818071421_4fc844fa1f_m.jpg" alt="" /></a><br />Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 11 / James St. John</span>

サイズ変更など

Aphyric & partially devitrified rhyolitic obsidian (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, 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/32933857228.html" target="_blank"><img src="http://farm8.static.flickr.com/7914/32933857228_f6788365b8_m.jpg" alt="" /></a><br />Aphyric & partially devitrified rhyolitic obsidian (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 7 / James St. John</span>

サイズ変更など

Pilot Butte (Pliocene madupite lamproite volcanic center in the Leucite Hills, Wyoming, 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/48927036128.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/48927036128_2bd8c6bd5e_m.jpg" alt="" /></a><br />Pilot Butte (Pliocene madupite lamproite volcanic center in the Leucite Hills, Wyoming, USA) 1 / James St. John</span>

サイズ変更など

Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, 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/46818010941.html" target="_blank"><img src="http://farm8.static.flickr.com/7862/46818010941_262c62e886_m.jpg" alt="" /></a><br />Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 19 / James St. John</span>

サイズ変更など

Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, 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/46092909084.html" target="_blank"><img src="http://farm5.static.flickr.com/4828/46092909084_d77393b8e7_m.jpg" alt="" /></a><br />Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 3 / James St. John</span>

サイズ変更など

Volcanic breccia (Upper Oligocene, 25 Ma; Narbona Pass Maar Volcano, near the summit of the Chuska Mountains, Navajo Volcanic Field, New Mexico, 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/50960740362.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50960740362_12e93b644a_m.jpg" alt="" /></a><br />Volcanic breccia (Upper Oligocene, 25 Ma; Narbona Pass Maar Volcano, near the summit of the Chuska Mountains, Navajo Volcanic Field, New Mexico, USA) 3 / James St. John</span>

サイズ変更など

Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 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/32943306258.html" target="_blank"><img src="http://farm5.static.flickr.com/4803/32943306258_4c32137f21_m.jpg" alt="" /></a><br />Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 29 / James St. John</span>

サイズ変更など

Sunstone (Tertiary; Spectrum Mine, Oregon, 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/51660725051.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51660725051_b804df99b7_m.jpg" alt="" /></a><br />Sunstone (Tertiary; Spectrum Mine, Oregon, USA) 7 / James St. John</span>

サイズ変更など

Porphyritic basaltic andesite (juvenile lava from a 14 June 2006 pyroclastic flow from Mt. Merapi, ~1200 m elevation at Bebeng, Java, Indonesia) 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/50820293742.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50820293742_9109ec28dd_m.jpg" alt="" /></a><br />Porphyritic basaltic andesite (juvenile lava from a 14 June 2006 pyroclastic flow from Mt. Merapi, ~1200 m elevation at Bebeng, Java, Indonesia) 4 / James St. John</span>

サイズ変更など

Vesicular andesite (Upper Pliocene, 1.9 Ma; Sierra Grande Shield Volcano, Raton-Clayton Volcanic Field, New Mexico, USA) 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/50995062007.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50995062007_dd75a2521b_m.jpg" alt="" /></a><br />Vesicular andesite (Upper Pliocene, 1.9 Ma; Sierra Grande Shield Volcano, Raton-Clayton Volcanic Field, New Mexico, USA) 6 / James St. John</span>

サイズ変更など

E Mt Curl feldspar phenocrysts in microdiorite
by euphro

クリエイティブ・コモンズ表示-継承 2.1

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/5876506163.html" target="_blank"><img src="http://farm7.static.flickr.com/6038/5876506163_6059e3637a_m.jpg" alt="" /></a><br />E Mt Curl feldspar phenocrysts in microdiorite / euphro</span>

サイズ変更など

Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, 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/31876512117.html" target="_blank"><img src="http://farm8.static.flickr.com/7826/31876512117_55b9b5998f_m.jpg" alt="" /></a><br />Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 1 / James St. John</span>

サイズ変更など

Porphyritic granite (Giants Range Batholith, Neoarchean, 2.67-2.68 Ga; Rt. 1 roadcut north of the South Kawishiwi River, Minnesota, USA) 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/20821240203.html" target="_blank"><img src="http://farm6.static.flickr.com/5741/20821240203_bb232ecdd5_m.jpg" alt="" /></a><br />Porphyritic granite (Giants Range Batholith, Neoarchean, 2.67-2.68 Ga; Rt. 1 roadcut north of the South Kawishiwi River, Minnesota, USA) 4 / James St. John</span>

サイズ変更など

Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, 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/39852808173.html" target="_blank"><img src="http://farm8.static.flickr.com/7876/39852808173_b2f575863d_m.jpg" alt="" /></a><br />Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 13 / James St. John</span>

サイズ変更など

Llao Rock (Crater Lake Caldera, Oregon, USA) 17
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/42006899811.html" target="_blank"><img src="http://farm1.static.flickr.com/978/42006899811_c06a6b449d_m.jpg" alt="" /></a><br />Llao Rock (Crater Lake Caldera, Oregon, USA) 17 / James St. John</span>

サイズ変更など

Porphyritic mica peridotite (Paleozoic; Tompkins County, New York State, 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/52152460156.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52152460156_d3cc49e779_m.jpg" alt="" /></a><br />Porphyritic mica peridotite (Paleozoic; Tompkins County, New York State, USA) 2 / James St. John</span>

サイズ変更など

Actinolite xenolith & sandorite lamprophyre (Sandor Dike, Neoarchean, 2.703 Ga; Route 17 roadcut northeast of Wasp Lake & north of Wawa, Ontario, Canada) 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/48343106166.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/48343106166_d17cccbef4_m.jpg" alt="" /></a><br />Actinolite xenolith & sandorite lamprophyre (Sandor Dike, Neoarchean, 2.703 Ga; Route 17 roadcut northeast of Wasp Lake & north of Wawa, Ontario, Canada) 23 / James St. John</span>

サイズ変更など

Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 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/45903213105.html" target="_blank"><img src="http://farm8.static.flickr.com/7899/45903213105_7d08f399b5_m.jpg" alt="" /></a><br />Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 21 / James St. John</span>

サイズ変更など

Trachyte obsidian (Quaternary; Ol Doinyo Nyukie Volcano, Kenya) 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/50732154628.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50732154628_10841b0517_m.jpg" alt="" /></a><br />Trachyte obsidian (Quaternary; Ol Doinyo Nyukie Volcano, Kenya) 3 / James St. John</span>

サイズ変更など

Rhyolite (Palisade Rhyolite, North Shore Volcanic Group, Mesoproterozoic, 1096-1097 Ma; Rt. 1 roadcut just north of Ilgen City, 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/23358611935.html" target="_blank"><img src="http://farm6.static.flickr.com/5764/23358611935_a29cfb955f_m.jpg" alt="" /></a><br />Rhyolite (Palisade Rhyolite, North Shore Volcanic Group, Mesoproterozoic, 1096-1097 Ma; Rt. 1 roadcut just north of Ilgen City, Minnesota, USA) 9 / James St. John</span>

サイズ変更など

Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 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/46766616582.html" target="_blank"><img src="http://farm8.static.flickr.com/7801/46766616582_893d83bef9_m.jpg" alt="" /></a><br />Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 30 / James St. John</span>

サイズ変更など

Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, 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/39852812733.html" target="_blank"><img src="http://farm8.static.flickr.com/7864/39852812733_2dde1c1b95_m.jpg" alt="" /></a><br />Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 12 / James St. John</span>

サイズ変更など

Rhyodacite vitrophyre (Llao Rock Rhyodacite, Holocene, ~7.8-7.9 ka; roadcut near Llao Rock, margin of Crater Lake Caldera, Oregon, 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/27863632208.html" target="_blank"><img src="http://farm1.static.flickr.com/981/27863632208_fb6e73fd75_m.jpg" alt="" /></a><br />Rhyodacite vitrophyre (Llao Rock Rhyodacite, Holocene, ~7.8-7.9 ka; roadcut near Llao Rock, margin of Crater Lake Caldera, Oregon, USA) 23 / James St. John</span>

サイズ変更など

Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 14
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/39852797463.html" target="_blank"><img src="http://farm5.static.flickr.com/4809/39852797463_b21b075ca1_m.jpg" alt="" /></a><br />Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 14 / James St. John</span>

サイズ変更など

Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, 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/46818034561.html" target="_blank"><img src="http://farm5.static.flickr.com/4843/46818034561_916afb90d7_m.jpg" alt="" /></a><br />Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 16 / James St. John</span>

サイズ変更など

Volcanic breccia (Upper Oligocene, 25 Ma; Narbona Pass Maar Volcano, near the summit of the Chuska Mountains, Navajo Volcanic Field, New Mexico, 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/50960635826.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50960635826_3685c1a681_m.jpg" alt="" /></a><br />Volcanic breccia (Upper Oligocene, 25 Ma; Narbona Pass Maar Volcano, near the summit of the Chuska Mountains, Navajo Volcanic Field, New Mexico, USA) 5 / James St. John</span>

サイズ変更など

Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, 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/45903096765.html" target="_blank"><img src="http://farm5.static.flickr.com/4895/45903096765_b319923ced_m.jpg" alt="" /></a><br />Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 18 / James St. John</span>

サイズ変更など

Pinkish-reddish porphyritic dacite (Upper Pleistocene, 27 ka; Devastated Area, Lassen Volcano National Park, 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/37306472330.html" target="_blank"><img src="http://farm5.static.flickr.com/4452/37306472330_4417d56269_m.jpg" alt="" /></a><br />Pinkish-reddish porphyritic dacite (Upper Pleistocene, 27 ka; Devastated Area, Lassen Volcano National Park, California, USA) 3 / James St. John</span>

サイズ変更など

421件～480件 (全 1,101件)

前へ 3 4 5 6 7 8 9 10 11 12 13 次へ

(C)名入れギフト.com