clasts

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Homotrema rubrum (encrusting foraminifera) (modern; San Salvador Island, Bahamas) 3
by James St. John

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/49719120366.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49719120366_1e3aa4404d_m.jpg" alt="" /></a><br />Homotrema rubrum (encrusting foraminifera) (modern; San Salvador Island, Bahamas) 3 / James St. John</span>

サイズ変更など

Hexagonaria percarinata (fossil coral) (Petoskey Stone) (Traverse Group, Middle Devonian; Michigan, USA) 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/51145168416.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51145168416_509c929e32_m.jpg" alt="" /></a><br />Hexagonaria percarinata (fossil coral) (Petoskey Stone) (Traverse Group, Middle Devonian; Michigan, USA) 10 / James St. John</span>

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Autobrecciated amygdaloidal quartz tholeiite basalt aa lava flow top (flow B, Two Harbors Basalts, North Shore Volcanic Series, Mesoproterozoic, 1097-1098 Ma; Burlington Bay, Two Harbors, Minnesota, USA) 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/22291293289.html" target="_blank"><img src="http://farm1.static.flickr.com/679/22291293289_0bf5aa3dbf_m.jpg" alt="" /></a><br />Autobrecciated amygdaloidal quartz tholeiite basalt aa lava flow top (flow B, Two Harbors Basalts, North Shore Volcanic Series, Mesoproterozoic, 1097-1098 Ma; Burlington Bay, Two Harbors, Minnesota, USA) 26 / James St. John</span>

サイズ変更など

Seismite horizon (upper Fairview Formation, Upper Ordovician; Maysville West roadcut, Kentucky, USA) 54
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/31590452558.html" target="_blank"><img src="http://farm2.static.flickr.com/1922/31590452558_766cd5307d_m.jpg" alt="" /></a><br />Seismite horizon (upper Fairview Formation, Upper Ordovician; Maysville West roadcut, Kentucky, USA) 54 / James St. John</span>

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Jonathan Run (north-northwest of Fultonham, Ohio, 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/44319440275.html" target="_blank"><img src="http://farm2.static.flickr.com/1944/44319440275_458f04510d_m.jpg" alt="" /></a><br />Jonathan Run (north-northwest of Fultonham, Ohio, USA) 5 / James St. John</span>

サイズ変更など

Volcanic debris flow deposit (upper Holocene, May 1915; Devastated Area, Lassen Volcano National Park, California, USA) 38
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/37537764966.html" target="_blank"><img src="http://farm5.static.flickr.com/4503/37537764966_156557ed13_m.jpg" alt="" /></a><br />Volcanic debris flow deposit (upper Holocene, May 1915; Devastated Area, Lassen Volcano National Park, California, USA) 38 / James St. John</span>

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Barnacles on beach clast (Hulls Cove, Mt. Desert Island, Maine, 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/50608038636.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50608038636_182d104895_m.jpg" alt="" /></a><br />Barnacles on beach clast (Hulls Cove, Mt. Desert Island, Maine, USA) 1 / James St. John</span>

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Sorted gravel from Pleistocene glacial outwash (St. Louisville gravel pits, Licking County, Ohio, 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/44492526080.html" target="_blank"><img src="http://farm5.static.flickr.com/4860/44492526080_e946a3f0ab_m.jpg" alt="" /></a><br />Sorted gravel from Pleistocene glacial outwash (St. Louisville gravel pits, Licking County, Ohio, USA) 17 / James St. John</span>

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Dike & peperite & basaltic lapillistone (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711-2.719 Ga; just 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/47886576901.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/47886576901_0b1373a3a0_m.jpg" alt="" /></a><br />Dike & peperite & basaltic lapillistone (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711-2.719 Ga; just southwest of the Potter Mine, east of Timmins, Ontario, Canada) 3 / James St. John</span>

サイズ変更など

Mudshale clasts in pebbly sandstone ("Sharon Conglomerate", Lower Pennsylvanian; Jackson North roadcut, Ohio, USA) 65
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/23891107288.html" target="_blank"><img src="http://farm5.static.flickr.com/4502/23891107288_9917bbc367_m.jpg" alt="" /></a><br />Mudshale clasts in pebbly sandstone ("Sharon Conglomerate", Lower Pennsylvanian; Jackson North roadcut, Ohio, USA) 65 / 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) 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/37317781230.html" target="_blank"><img src="http://farm5.static.flickr.com/4486/37317781230_968e7f18c6_m.jpg" alt="" /></a><br />Black porphyritic dacite (upper Holocene, 14 May 1915; Devastated Area, Lassen Volcano National Park, California, USA) 29 / James St. John</span>

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Allouez Conglomerate-flood basalt contact (Portage Lake Volcanic Series, upper Mesoproterozoic, 1.094 Ga; Delaware Copper Mine, Keweenaw Peninsula, Upper Peninsula of Michigan, 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/50725474686.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50725474686_d771f6ecbc_m.jpg" alt="" /></a><br />Allouez Conglomerate-flood basalt contact (Portage Lake Volcanic Series, upper Mesoproterozoic, 1.094 Ga; Delaware Copper Mine, Keweenaw Peninsula, Upper Peninsula of Michigan, USA) 2 / James St. John</span>

サイズ変更など

Black & mahogany vitrophyre (Nez Perce Creek Flow, Middle Pleistocene, about 152 ka; Firehole Canyon roadcut, 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/20670391356.html" target="_blank"><img src="http://farm1.static.flickr.com/703/20670391356_2e3cb621da_m.jpg" alt="" /></a><br />Black & mahogany vitrophyre (Nez Perce Creek Flow, Middle Pleistocene, about 152 ka; Firehole Canyon roadcut, Yellowstone, Wyoming, USA) 5 / James St. John</span>

サイズ変更など

Composite ironstone concretion (gravel bar clast, Chatham, Ohio, 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/40359484065.html" target="_blank"><img src="http://farm1.static.flickr.com/819/40359484065_5b4aa8b916_m.jpg" alt="" /></a><br />Composite ironstone concretion (gravel bar clast, Chatham, Ohio, USA) 2 / James St. John</span>

サイズ変更など

Glacial outwash (Upper Pleistocene, 15-18 ka; St. Louisville gravel pits, Licking County, Ohio, 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/46112197241.html" target="_blank"><img src="http://farm5.static.flickr.com/4882/46112197241_404b753642_m.jpg" alt="" /></a><br />Glacial outwash (Upper Pleistocene, 15-18 ka; St. Louisville gravel pits, Licking County, Ohio, USA) 12 / James St. John</span>

サイズ変更など

Basaltic lapillistone (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711-2.719 Ga; just east 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/33979653558.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/33979653558_477297c9a8_m.jpg" alt="" /></a><br />Basaltic lapillistone (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711-2.719 Ga; just east of the Potter Mine, east of Timmins, Ontario, Canada) 9 / James St. John</span>

サイズ変更など

Nephrite jade (Precambrian) (Granite Mountains, Fremont County, 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/49703436701.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/49703436701_db64858991_m.jpg" alt="" /></a><br />Nephrite jade (Precambrian) (Granite Mountains, Fremont County, Wyoming, USA) 3 / James St. John</span>

サイズ変更など

Basaltic lapillistone (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711-2.719 Ga; just east of 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/47076501114.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/47076501114_43bdce5c2a_m.jpg" alt="" /></a><br />Basaltic lapillistone (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711-2.719 Ga; just east of the Potter Mine, east of Timmins, Ontario, Canada) 27 / James St. John</span>

サイズ変更など

Glacial outwash (Pleistocene; St. Louisville gravel pits, Licking County, Ohio, 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/46315155751.html" target="_blank"><img src="http://farm5.static.flickr.com/4820/46315155751_91e23813f9_m.jpg" alt="" /></a><br />Glacial outwash (Pleistocene; St. Louisville gravel pits, Licking County, Ohio, USA) 23 / James St. John</span>

サイズ変更など

Amygdaloidal basalt 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/50420370647.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50420370647_0b48b9a4f0_m.jpg" alt="" /></a><br />Amygdaloidal basalt 1 / James St. John</span>

サイズ変更など

Pedogenic breccia (Conemaugh Group, Upper Pennsylvanian; creek cut on the western side of Caldwell, Ohio, 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/30836236280.html" target="_blank"><img src="http://farm6.static.flickr.com/5481/30836236280_76b856db77_m.jpg" alt="" /></a><br />Pedogenic breccia (Conemaugh Group, Upper Pennsylvanian; creek cut on the western side of Caldwell, Ohio, USA) 2 / James St. John</span>

サイズ変更など

Intergranular calcite in autobrecciated amygdaloidal tholeiite basalt aa lava flow top (flow B, Two Harbors Basalts, North Shore Volcanic Series, Mesoproterozoic, 1097-1098 Ma; Burlington Bay, Two Harbors, Minnesota, 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/22489852391.html" target="_blank"><img src="http://farm6.static.flickr.com/5758/22489852391_9bd967dca0_m.jpg" alt="" /></a><br />Intergranular calcite in autobrecciated amygdaloidal tholeiite basalt aa lava flow top (flow B, Two Harbors Basalts, North Shore Volcanic Series, Mesoproterozoic, 1097-1098 Ma; Burlington Bay, Two Harbors, Minnesota, USA) 7 / James St. John</span>

サイズ変更など

Lakeshore beach gravel (upper Holocene; derived from the North Shore Volcanic Series, Mesoproterozoic, 1.1 Ga; Burlington Bay, Two Harbors, 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/22421985896.html" target="_blank"><img src="http://farm6.static.flickr.com/5661/22421985896_70766a2d8b_m.jpg" alt="" /></a><br />Lakeshore beach gravel (upper Holocene; derived from the North Shore Volcanic Series, Mesoproterozoic, 1.1 Ga; Burlington Bay, Two Harbors, Minnesota, USA) 2 / James St. John</span>

サイズ変更など

Barnacles on beach clast (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

<span style="font-size:10px;"><a href="http://www.igosso.net/flk/50607291223.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50607291223_db6aeee10e_m.jpg" alt="" /></a><br />Barnacles on beach clast (Hulls Cove, Mt. Desert Island, Maine, USA) 2 / James St. John</span>

サイズ変更など

Hexagonaria sp. (fossil coral) (Devonian; Lake Michigan shoreline, near Bay View, Michigan, 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/41314988765.html" target="_blank"><img src="http://farm1.static.flickr.com/824/41314988765_2f7866ccf8_m.jpg" alt="" /></a><br />Hexagonaria sp. (fossil coral) (Devonian; Lake Michigan shoreline, near Bay View, Michigan, USA) 2 / James St. John</span>

サイズ変更など

Glacial outwash (Upper Pleistocene, 15-18 ka; St. Louisville gravel pits, Licking County, Ohio, 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/45388345304.html" target="_blank"><img src="http://farm5.static.flickr.com/4839/45388345304_a16432c195_m.jpg" alt="" /></a><br />Glacial outwash (Upper Pleistocene, 15-18 ka; St. Louisville gravel pits, Licking County, Ohio, USA) 30 / James St. John</span>

サイズ変更など

Pseudotachylitic fault breccia (Homestake Shear Zone, Mesoproterozoic, 1375-1386 Ma) in gneiss (Paleoproterozoic, 1630-1710 Ma; Homestake Creek Valley, Sawatch Range, Colorado, 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/21176214714.html" target="_blank"><img src="http://farm1.static.flickr.com/701/21176214714_f3c2a3a667_m.jpg" alt="" /></a><br />Pseudotachylitic fault breccia (Homestake Shear Zone, Mesoproterozoic, 1375-1386 Ma) in gneiss (Paleoproterozoic, 1630-1710 Ma; Homestake Creek Valley, Sawatch Range, Colorado, USA) 1 / James St. John</span>

サイズ変更など

Banded dacite pumice-andesite (upper Holocene, 22 May 1915; 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/37579077741.html" target="_blank"><img src="http://farm5.static.flickr.com/4503/37579077741_84b19a6875_m.jpg" alt="" /></a><br />Banded dacite pumice-andesite (upper Holocene, 22 May 1915; Devastated Area, Lassen Volcano National Park, California, USA) 3 / 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) 44
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/37544441692.html" target="_blank"><img src="http://farm5.static.flickr.com/4459/37544441692_325c3151a5_m.jpg" alt="" /></a><br />Black porphyritic dacite (upper Holocene, 14 May 1915; Devastated Area, Lassen Volcano National Park, California, USA) 44 / James St. John</span>

サイズ変更など

Hexagonaria percarinata (fossil coral) (Traverse Group, Middle Devonian; Bay View, Michigan, 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/42169225542.html" target="_blank"><img src="http://farm1.static.flickr.com/982/42169225542_c1da9aca4c_m.jpg" alt="" /></a><br />Hexagonaria percarinata (fossil coral) (Traverse Group, Middle Devonian; Bay View, Michigan, USA) / James St. John</span>

サイズ変更など

Pedogenic breccia (Conemaugh Group, Upper Pennsylvanian; creek cut on the western side of Caldwell, Ohio, 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/30382018954.html" target="_blank"><img src="http://farm6.static.flickr.com/5563/30382018954_b5d498ba84_m.jpg" alt="" /></a><br />Pedogenic breccia (Conemaugh Group, Upper Pennsylvanian; creek cut on the western side of Caldwell, Ohio, USA) 20 / James St. John</span>

サイズ変更など

Pleasant Valley Limestone Quarry (Muskingum County, Ohio, 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/44027044445.html" target="_blank"><img src="http://farm2.static.flickr.com/1922/44027044445_4815e6e4e2_m.jpg" alt="" /></a><br />Pleasant Valley Limestone Quarry (Muskingum County, Ohio, USA) 4 / James St. John</span>

サイズ変更など

Eurypterid (fossil sea scorpion) (probably Silurian; South Bass Island, Lake Erie, Ohio, 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/36014762925.html" target="_blank"><img src="http://farm5.static.flickr.com/4330/36014762925_404d760a59_m.jpg" alt="" /></a><br />Eurypterid (fossil sea scorpion) (probably Silurian; South Bass Island, Lake Erie, Ohio, USA) 1 / James St. John</span>

サイズ変更など

Glacial outwash (Upper Pleistocene, 15-18 ka; St. Louisville gravel pits, Licking County, Ohio, USA) 24
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/45388335294.html" target="_blank"><img src="http://farm5.static.flickr.com/4835/45388335294_6a3c4628a2_m.jpg" alt="" /></a><br />Glacial outwash (Upper Pleistocene, 15-18 ka; St. Louisville gravel pits, Licking County, Ohio, USA) 24 / James St. John</span>

サイズ変更など

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/21856094374.html" target="_blank"><img src="http://farm6.static.flickr.com/5814/21856094374_31c5af8a43_m.jpg" alt="" /></a><br />Intergranular calcite in autobrecciated amygdaloidal tholeiite basalt aa lava flow top (flow B, Two Harbors Basalts, North Shore Volcanic Series, Mesoproterozoic, 1097-1098 Ma; Burlington Bay, Two Harbors, Minnesota, USA) 9 / James St. John</span>

サイズ変更など

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/21610844820.html" target="_blank"><img src="http://farm1.static.flickr.com/769/21610844820_6a1296abb9_m.jpg" alt="" /></a><br />Pseudotachylitic fault breccia (Homestake Shear Zone, Mesoproterozoic, 1375-1386 Ma) in gneiss (Paleoproterozoic, 1630-1710 Ma; Homestake Creek Valley, Sawatch Range, Colorado, USA) 9 / James St. John</span>

サイズ変更など

Ironstone pebbles in quartz-pebble conglomerate (Sharon Conglomerate, Lower Pennsylvanian; Jackson North roadcut, Ohio, 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/23871902128.html" target="_blank"><img src="http://farm5.static.flickr.com/4445/23871902128_e58ebf36ee_m.jpg" alt="" /></a><br />Ironstone pebbles in quartz-pebble conglomerate (Sharon Conglomerate, Lower Pennsylvanian; Jackson North roadcut, Ohio, USA) 17 / James St. John</span>

サイズ変更など

Basaltic lapillistone (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711-2.719 Ga; just east 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/46940644095.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/46940644095_2fc54feaba_m.jpg" alt="" /></a><br />Basaltic lapillistone (Middle Tholeiitic Unit, Kidd-Munro Assemblage, Neoarchean, 2.711-2.719 Ga; just east of the Potter Mine, east of Timmins, Ontario, Canada) 4 / James St. John</span>

サイズ変更など

Alluvial polymict conglomerate (Mount Rogers Formation, Neoproterozoic, 750-760 Ma; Fox Creek roadcut, west of Troutdale, Virginia, USA) 118
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/30200538830.html" target="_blank"><img src="http://farm6.static.flickr.com/5731/30200538830_daee2f4f59_m.jpg" alt="" /></a><br />Alluvial polymict conglomerate (Mount Rogers Formation, Neoproterozoic, 750-760 Ma; Fox Creek roadcut, west of Troutdale, Virginia, USA) 118 / James St. John</span>

サイズ変更など

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/21611984569.html" target="_blank"><img src="http://farm6.static.flickr.com/5808/21611984569_d0103a904b_m.jpg" alt="" /></a><br />Pseudotachylitic fault breccia (Homestake Shear Zone, Mesoproterozoic, 1375-1386 Ma) in gneiss (Paleoproterozoic, 1630-1710 Ma; Homestake Creek Valley, Sawatch Range, Colorado, USA) 7 / James St. John</span>

サイズ変更など

Jasper-quartz pebble conglomerate (Lorrain Formation, Paleoproterozoic, ~2.3 Ga; Ottertail Lake Northeast roadcut, near Bruce Mines, Ontario, Canada) 68
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/33832345308.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/33832345308_ddca096440_m.jpg" alt="" /></a><br />Jasper-quartz pebble conglomerate (Lorrain Formation, Paleoproterozoic, ~2.3 Ga; Ottertail Lake Northeast roadcut, near Bruce Mines, Ontario, Canada) 68 / James St. John</span>

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Fossiliferous ironstone (Licking County, Ohio, 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/50700432452.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50700432452_386781c58e_m.jpg" alt="" /></a><br />Fossiliferous ironstone (Licking County, Ohio, USA) 4 / James St. John</span>

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Mudshale clasts in quartz-pebble conglomerate (Sharon Conglomerate, Lower Pennsylvanian; Jackson North roadcut, Ohio, 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/37711960872.html" target="_blank"><img src="http://farm5.static.flickr.com/4505/37711960872_36fb696460_m.jpg" alt="" /></a><br />Mudshale clasts in quartz-pebble conglomerate (Sharon Conglomerate, Lower Pennsylvanian; Jackson North roadcut, Ohio, USA) 6 / James St. John</span>

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Clast-rich impact pseudotachylite (Sudbury Breccia, Paleoproterozoic, 1.85 Ga; Windy Lake Northwest roadcut, Sudbury Impact Structure, Ontario, Canada) 50
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/32814565357.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/32814565357_d4a4b18ff8_m.jpg" alt="" /></a><br />Clast-rich impact pseudotachylite (Sudbury Breccia, Paleoproterozoic, 1.85 Ga; Windy Lake Northwest roadcut, Sudbury Impact Structure, Ontario, Canada) 50 / James St. John</span>

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Black Pool 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/8270848608.html" target="_blank"><img src="http://farm9.static.flickr.com/8075/8270848608_b5a4a08aa9_m.jpg" alt="" /></a><br />Black Pool 1 / James St. John</span>

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Black Pool runoff channel
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/8269781893.html" target="_blank"><img src="http://farm9.static.flickr.com/8356/8269781893_0e7f64e6f1_m.jpg" alt="" /></a><br />Black Pool runoff channel / James St. John</span>

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Jasper-quartz pebble conglomerate (Lorrain Formation, Paleoproterozoic, ~2.3 Ga; Ottertail Lake Northeast roadcut, near Bruce Mines, Ontario, Canada) 63
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/40743195293.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/40743195293_b249165a68_m.jpg" alt="" /></a><br />Jasper-quartz pebble conglomerate (Lorrain Formation, Paleoproterozoic, ~2.3 Ga; Ottertail Lake Northeast roadcut, near Bruce Mines, Ontario, Canada) 63 / James St. John</span>

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Ferruginous chert pebble conglomerate (Graydon Conglomerate, Lower Pennsylvanian; near Mountain Grove, Missouri, 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/51046755278.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/51046755278_d69a4d4750_m.jpg" alt="" /></a><br />Ferruginous chert pebble conglomerate (Graydon Conglomerate, Lower Pennsylvanian; near Mountain Grove, Missouri, USA) 3 / James St. John</span>

サイズ変更など

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/21854937294.html" target="_blank"><img src="http://farm6.static.flickr.com/5760/21854937294_1a36d5cd14_m.jpg" alt="" /></a><br />Autobrecciated amygdaloidal quartz tholeiite basalt aa lava flow top (flow B, Two Harbors Basalts, North Shore Volcanic Series, Mesoproterozoic, 1097-1098 Ma; Burlington Bay, Two Harbors, Minnesota, USA) 1 / James St. John</span>

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Impact breccia (Middle Ordovician; Hummeln Impact Structure, Sweden) 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/50903063003.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/50903063003_02523eef54_m.jpg" alt="" /></a><br />Impact breccia (Middle Ordovician; Hummeln Impact Structure, Sweden) 7 / James St. John</span>

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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/21808397891.html" target="_blank"><img src="http://farm1.static.flickr.com/707/21808397891_615ffe0873_m.jpg" alt="" /></a><br />Pseudotachylitic fault breccia (Homestake Shear Zone, Mesoproterozoic, 1375-1386 Ma) in gneiss (Paleoproterozoic, 1630-1710 Ma; Homestake Creek Valley, Sawatch Range, Colorado, USA) 4 / James St. John</span>

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Fluvial polish (Sioux Quartzite, Paleoproterozoic, 1.65-1.70 Ga; Falls Park, Sioux Falls, South Dakota, 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/52406137871.html" target="_blank"><img src="http://farm66.static.flickr.com/65535/52406137871_c4dc5f1a36_m.jpg" alt="" /></a><br />Fluvial polish (Sioux Quartzite, Paleoproterozoic, 1.65-1.70 Ga; Falls Park, Sioux Falls, South Dakota, USA) 6 / James St. John</span>

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Boulder from glacial till (Upper Pleistocene; VanWinkle Unit # 1 wellsite, Granville, Ohio, 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/38748372810.html" target="_blank"><img src="http://farm5.static.flickr.com/4617/38748372810_d3f660b49c_m.jpg" alt="" /></a><br />Boulder from glacial till (Upper Pleistocene; VanWinkle Unit # 1 wellsite, Granville, Ohio, USA) 4 / James St. John</span>

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Oolitic ironstone (Brassfield Formation, Lower Silurian; Ohio Brush Creek roadcut, southern Ohio, 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/36720738826.html" target="_blank"><img src="http://farm5.static.flickr.com/4364/36720738826_2f68771d90_m.jpg" alt="" /></a><br />Oolitic ironstone (Brassfield Formation, Lower Silurian; Ohio Brush Creek roadcut, southern Ohio, USA) 3 / James St. John</span>

サイズ変更など

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/21772735166.html" target="_blank"><img src="http://farm6.static.flickr.com/5628/21772735166_08e3d75169_m.jpg" alt="" /></a><br />Pseudotachylitic fault breccia (Homestake Shear Zone, Mesoproterozoic, 1375-1386 Ma) in gneiss (Paleoproterozoic, 1630-1710 Ma; Homestake Creek Valley, Sawatch Range, Colorado, USA) 8 / James St. John</span>

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Banded dacite pumice-andesite (upper Holocene, 22 May 1915; Devastated Area, Lassen Volcano National Park, California, 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/37320575960.html" target="_blank"><img src="http://farm5.static.flickr.com/4457/37320575960_18aca19601_m.jpg" alt="" /></a><br />Banded dacite pumice-andesite (upper Holocene, 22 May 1915; Devastated Area, Lassen Volcano National Park, California, USA) 2 / James St. John</span>

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Hexagonaria sp. (fossil coral) (Devonian; Lake Michigan shoreline, near Bay View, Michigan, 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/42169216332.html" target="_blank"><img src="http://farm1.static.flickr.com/825/42169216332_dbdaabcedf_m.jpg" alt="" /></a><br />Hexagonaria sp. (fossil coral) (Devonian; Lake Michigan shoreline, near Bay View, Michigan, USA) 3 / James St. John</span>

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Black porphyritic dacite (upper Holocene, 14 May 1915; Devastated Area, Lassen Volcano National Park, California, USA) 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/37317305100.html" target="_blank"><img src="http://farm5.static.flickr.com/4494/37317305100_1293ecc920_m.jpg" alt="" /></a><br />Black porphyritic dacite (upper Holocene, 14 May 1915; Devastated Area, Lassen Volcano National Park, California, USA) 27 / 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) 15
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/44392052275.html" target="_blank"><img src="http://farm2.static.flickr.com/1917/44392052275_6728235d07_m.jpg" alt="" /></a><br />Marinace Green Granite (polymict metaconglomerate) (Ouricuri do Ouro Formation, Mesoproterozoic, ~1.6-1.7 Ga; Bahia, Brazil) 15 / James St. John</span>

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Glacial outwash (Upper Pleistocene, 15-18 ka; St. Louisville gravel pits, Licking County, Ohio, USA) 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/45388345774.html" target="_blank"><img src="http://farm5.static.flickr.com/4804/45388345774_ff51896ae6_m.jpg" alt="" /></a><br />Glacial outwash (Upper Pleistocene, 15-18 ka; St. Louisville gravel pits, Licking County, Ohio, USA) 32 / James St. John</span>

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