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units are separated by distance, and type of deposition material; the local subsidence, or uplift, as well as glaciation, and sea level changes, can cause variations in the deposition sequences of transgression-regressions. The ocean was to the west of the proto-North
American continent, but also
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The
Manakacha Formation was laid down (especially in the Grand Canyon). It consists of up to 400 feet (120 m) of calcareous sandstone and shaly mudstone. It represents a time when deposition of
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supplied material from the west of the ancestral West Coast. The North
American continent supplied material from the east. Three other basins were formed at the same time: the
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sand became more widespread. The
Manakacha was deposited at about the same time as the
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The geologic sequences of the coeval Supai and
Hermosa Groups.
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The Supai Group members were created from marine sequences of
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The
Manakacha Formation, sitting on a debris slope of
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228:, etc.), and found throughout sections of the
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444:Ancient Landscapes of the Colorado Plateau
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476:U.S. Geological Survey Professional Paper
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240:region, or as a basement unit below the
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191:and central & east-northeast Arizona
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544:Carboniferous System of North America
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332:, named for Hermosa Cliffs, north of
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534:Natural history of the Grand Canyon
442:Blakey, Ron; Ranney, Wayne (2008).
259:was deposited in northeast Utah in
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472:"The Supai Group of Grand Canyon"
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409:cover distances, over time, the
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529:Geologic formations of Arizona
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267:. This was likely during the
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16:Geologic formation in Arizona
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261:Dinosaur National Monument
414:northwest, or southwest.
352:Pinkerton Trail Formation
263:region, northeast of the
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386:. The ancient off-shore
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318:2 – Manakacha Formation
278:of the Pennsylvianian.
52:, of the same red color
396:Central Colorado Basin
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48:, on top of resistant
539:Carboniferous Arizona
407:marine transgressions
398:in Colorado, and the
394:of eastern Utah, the
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175:, southwest and south
515:at Wikimedia Commons
470:McKee, E.D. (1982).
361:marine transgression
323:Watahomigi Formation
222:marine transgression
92:Watahomigi Formation
46:Watahomigi Formation
513:Manakacha Formation
402:in northwest Utah.
314:Wescogame Formation
308:Esplanade Sandstone
202:Manakacha Formation
149: /
82:Wescogame Formation
28:Stratigraphic range
22:Manakacha Formation
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265:Uncompahgre Uplift
511:Media related to
346:Paradox Formation
334:Durango, Colorado
282:Geologic sequence
197:The (Upper) Late
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153:34.000°N 97.000°W
50:Redwall Limestone
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501:External links
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373:conglomerate
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273:Desmoinesian
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242:Mogollon Rim
238:Verde Valley
230:Grand Canyon
201:
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189:Mogollon Rim
185:Verde Valley
376:subsections
302:Supai Group
234:Supai Group
224:deposits, (
156: /
131:Coordinates
72:Supai Group
523:Categories
418:References
384:subsidence
226:siltstones
369:siltstone
365:sandstone
210:sandstone
119:siltstone
115:sandstone
106:Lithology
98:Thickness
78:Underlies
405:Because
125:Location
88:Overlies
30:: Upper
253:aeolian
144:97°00′W
141:34°00′N
111:Primary
68:Unit of
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411:coeval
371:, and
269:Atokan
218:eolian
180:Extent
169:Region
204:is a
480:1173
448:ISBN
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312:3 –
306:4 –
276:Ages
271:and
58:Type
484:doi
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
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