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Volcaniclastic breccia from the May 18, 1980 eruption of Mount. St. Helens. Found approximately four miles northwest of Toutle, WA. To explore all of this sample's features, click here: gigapan.com/gigapans/121349 Sample collected and contributed by Lee Gonzalez.
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- 158
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- 33
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Brecciated Quartzite in the Antietam Formation exposed along the west side of the Shenandoah River South of the Rt 50 bridge near Millwood Virginia. This image is part of the MAGIC (Mid Atlantic Geo-Image Collection) gigapan.com/galleries/10019/gigapans
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- 333
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- 31
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Close up of some of the breccia cemented by manganese and iron oxide cements. Image brought to you by the Mid-Atlantic Geo-Image Collection (M.A.G.I.C.).
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- 267
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- 30
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Close up of some of the breccia cemented by siliceous and iron/manganese oxide cements. Image brought to you by the Mid-Atlantic Geo-Image Collection (M.A.G.I.C.).
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- 370
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- 35
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This is brecciated quartzite in the Cambrian Antietam formation of the Chilhowee group in the Blue Ridge Province of Virginia. The Antietam Formation caps the transgressive clastic sequence of the Chilhowwe group and is interpreted as representing a beach/barrier environment. Also check out a few gigapans I made o...
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- 254
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- 30
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This is brecciated quartzite in the Cambrian Antietam formation of the Chilhowwe group in the Blue Ridge Province of Virginia. The Antietam Formation caps the transgressive clastic sequence of the Chilhowwe group and is interpreted as representing a beach/barrier environment. Also check out a few gigapans I made o...
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- 274
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- 30
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This sample was provided by Dr. Jay Kaufman of the University of Maryland.
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- 222
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- 1
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Volcaniclastic breccia from the May 18, 1980 eruption of Mount. St. Helens. Found approximately four miles northwest of Toutle, WA. To explore this sample's translucent features, click here: gigapan.com/gigapans/124815 Sample collected and contributed by Lee Gonzalez.
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- 612
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- 1
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This is an outcrop of brecciated quartzite located along the Shenendoah River near Ashby Gap Virginia. The quartzite is from the Cambrian Antietam formattion, the upper most clastic unit in the Blue Ridge stratigraphic stack. The Antietam Formation is a clean orthoquartzite containing skolithos trace fossils and is int...
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- 107
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- 1
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This is an outcrop of brecciated quartzite located along the Shenendoah River near Ashby Gap Virginia. The quartzite is from the Cambrian Antietam formation, the upper most clastic unit of the Blue Ridge stratigraphic stack. The Antietam formation is interpreted as a beach/barrier island sand at the top of a transgress...
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- 0
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- Total Views
- 193
- Explore Score
- 1

