The Stratigraphy of the Upper Triassic Martin Bridge Formation and "Lower Sedimentary Series" of the Northern Wallowa Mountains, Oregon |
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Page 22
... reef and outcrops high on the west wall of Hurricane Canyon immediately below the contact with the Sawtooth boss , at the Black Marble quarry and on the east wall of lower Lostine Canyon . This former reef , now recrystallized to ...
... reef and outcrops high on the west wall of Hurricane Canyon immediately below the contact with the Sawtooth boss , at the Black Marble quarry and on the east wall of lower Lostine Canyon . This former reef , now recrystallized to ...
Page 71
... reef and marginal beds can be seen dipping off the reef core when the sequence is observed from a distance . Fossils are abundant in certain horizons but very difficult to collect and identify . The limestone is underlain by a 300 foot ...
... reef and marginal beds can be seen dipping off the reef core when the sequence is observed from a distance . Fossils are abundant in certain horizons but very difficult to collect and identify . The limestone is underlain by a 300 foot ...
Page 92
... reef facies near the top of the Hurwal formation , which outcrops high on the west wall of Hurricane Canyon . Mueller assigned these fossils upper Karnic age also . • Paleontologic evidence indicates that the ecological environment of ...
... reef facies near the top of the Hurwal formation , which outcrops high on the west wall of Hurricane Canyon . Mueller assigned these fossils upper Karnic age also . • Paleontologic evidence indicates that the ecological environment of ...
Contents
STRATIGRAPHY | 11 |
RELATIONS OF THE SEDIMENTARY BEDS OF THE NORTHERN | 68 |
GEOLOGIC HISTORY | 71 |
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Common terms and phrases
ammonites andesite Aplite Aplite sill argillaceous argillite argillite beds banded Basalt belt calcareous carbonate material clastic Clover Creek greenstone Columbia River Basalt Cong conglomerates correlated dark gray deformed deposition described dikes disconformity environment eugeosynclinal facies feet fossils collected geologic graded bedding granodiorite graywacke green Halobia hard hornfels Hurricane Canyon Hurricane Divide Hurwal formation Idaho indicate intrusion Jurassic Kinney Creek land area lava light gray limestone lithologic Lostine Canyon Lostine River Lower Sedi Lower Sedimentary series Martin Bridge formation Martin Bridge limestone massive Matterhorn measured thickness mentary series meta-gw metamorphism mudstone northern Wallowa Mountains outcrop overlying Palen pebbles Permian Plate platy Point Joseph probably pyrite Qtzite quartzite reef Rhyolite rocks rubbly S. W. Mueller sandy sediments sequence silty Snake River Canyon source area Strat stratigraphic sections tectonic thin section uplift Upper Triassic volcanic W. D. Smith Wallowa Batholith Wallowa Lake Wallowa region weathers writer