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Friday, July 17, 2020 | History

3 edition of Varves and Climate of the Green River Epoch found in the catalog.

Varves and Climate of the Green River Epoch

United States Geological Survey

Varves and Climate of the Green River Epoch

Shorter Contributions to General Geology, 1929.

by United States Geological Survey

  • 155 Want to read
  • 40 Currently reading

Published by s.n in S.l .
Written in English


Edition Notes

SeriesU.S. Geological Survey professional paper -- 158-E
ContributionsBradley, W.H.
ID Numbers
Open LibraryOL21724027M

Bradley, Wilmot H., , "Varves and Climate of the Green River Epoch," in USGS Professional Paper , p. Bryant, Bruce, et al, , "Upper Cretaceous and Paleogene Sedimentary Rocks and Isotopic Ages of Paleogene Tuffs, Uinta Basin Utah," USGS Bulletin J,K. The Green River Formation is an Eocene rock formation on the eastern side of the Rocky Mountains. It records sediment from a group of intermountain fine fossils make this a lagerstätte, a place of exceptional preservation.. The various fossil beds of the Green River Formation span a 5 million year period, dating to between and million years ago (mya).

Click on the book chapter title to read more. The first of these methods was applied to the Green River Oil Shale (Eocene) by Bradley (). Bradley did not actually count the varves in a bed—he determined the mean thickness of varves from thin sections and the mean thickness of beds from measurements on outcrop and found the ratio to .

GENERAL. AMERICAN AUTOMOBILE ASSOCIATION, Western Tour Book, and ARIZONA STATE HIGHWAY DEPARTMENT, "Glorious Coconino." Arizona Highways, June ARIZONA HIGHWAY COMMISSION, ARIZONA RESOURCES BOARD, and ARIZONA STATE COLLEGE, with the cooperation of the NATIONAL PARK SERVICE, "Park, Parkway, and Recreational Area Plan." . Caciclice Fly Cases from the Green River Formation of Wyoming," and subsequent papers clealt with its mineralogy, plant and animal fossils, physical structures such as varves and mud cracks, stratigra- phy and areal geology, and geochemistry, as well as the climate of the Green River Epoch and the paleolimnology of the Green River lakes.


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Varves and Climate of the Green River Epoch by United States Geological Survey Download PDF EPUB FB2

THE VARVES AND CLIMATE OF THE GREEN RIVER EPOCH By WILMOT H~ BRADLEY ABSTRACT. The Green River formation is a series of lake beds of middle:Eocene age which occupies two large intermontane basins, one in Colorado and Utah, the other in Wyoming.

The formation averages about 2, feet in thickness and covers an area ofCited by: The varves and climate of the Green River epoch. [Wilmot H Bradley] Home. WorldCat Home About WorldCat Help. Search. Search for Library Items Search for Lists Search for Book\/a> ; \u00A0\u00A0\u00A0\n library:oclcnum\/a> \" \/span>\" ; \u00A0\u00A0\u00A0\n library.

Three time series of varves from the Eocene Green River Formation in Colorado, consisting of, and annual thickness measurements, were analyzed by a variety of statistical techniques t Cited by: Bradley WH () The varves and climate of the Green River epoch.

US Geol Surv Prof Pap E: 87– Google Scholar. Bradley WH () The origin of the oil shale and its microfossils of the Green River Formation of Colorado and Utah. US Geol Surv Prof Pap58 Google by: Bradley WH () The varves and climates of the Green River.

Epoch. Study has shown that the periodic variations in climate modulated by The absence of varves is a function of the low Author: Bernd Zolitschka. The Varves and Climate of the Green River Epoch, U.S.

Geological Survey Professional Paper,pp. Bradley, W.H. Origin and Microfossils of the Oil Shale of the Green River. a, The varves and climate of the Green. River epoch: U.S. Geol. Survey Prof.

Paper E, p. b, Algae reefs and oolites of the Green Ri'V'er Formation: U.S. Geol. Survey Prof. Paper G, p. The occurrence and origin of analcite. Basinal facies of the Green River Formation have two main modes, lacustrine and playa. The lacustrine mode (Tipton and Laney members) accumulated mainly varved oil shale.

Here annual cycles are recorded as varves. Variations in verve thickness demonstrate El Nino (ENSO)-type and sunspot cycles (Ripepe et al., this volume). The proof that varves represent annual deposits can be quite compelling.

Berrill, in his book Man's Emerging Mind, tells of a varved shale from the Miocene Epoch of Switzerland: Certain shales of Miocene age in Switzerland bring that ancient world as vividly to life as any poster advertising the glories of a Swiss canton.

The Green River fish fossil shown to me by my colleague also points to significant water deposition.” 9. I added a conjecture about the so-called varves: “Many years ago, following massive flooding and major ice-sheeting in northern (and southern) regions, the earth, seeking as it were to attain thermo-equilibrium, started to melt the ice.

The varves and climate of the Green River Epoch. U.S. Geol. Surv. Profess. Papers E, 87– (). These varves are known as symmict varves and are common in brackish water environment. Of the many rhythmites found in the geological record, varves are one of the most important and illuminating to studies of past climate change.

Varves are amongst the. The Green River Formation is an Eocene geologic formation that records the sedimentation in a group of intermountain lakes in three basins along the present-day Green River in Colorado, Wyoming, and sediments are deposited in very fine layers, a dark layer during the growing season and a light-hue inorganic layer in the dry season.

The varves and climate of the Green River Epoch, U.S. Geological Survey Professional PaperWashington, D.C., Return to text. King, L.C., Wandering Continents and Spreading Sea Floors on an Expanding Earth, John Wiley and Sons, New York, pp. 17, 71,   Bradley, Wilmot H.,Varves and Climate of the Green River Epoch, in USGS Professional Paperp.

Source: Glenn R. Morton, Creationist Misuse of the Green River Formation And once again we see what looks superficially like a good counter-argument - until we look closely at the detail and the specifics of the claim.

Correlation of Swedish glacial varves with the Greeland (GRIP) oxygen isotope record. by Andren, T et al and a great selection of related books, art and collectibles available now at The varves and climate of the Green River Epoch. Pages in U.S. Geol. Surv. Prof. Pap. ______. Origin and microfossils of the oil shale of the Green River Formation.

The Varves and Climate of the Green River Epoch, U.S. Geological Survey Professional Paper,pp. Bradley, W.H. Origin and Microfossils of the Oil Shale of the Green River Formation of Colorado and Utah, U.S. Geological Survey Professional Paper,58pp. Chapter E: The varves and climate of the Green River epoch Chapter F: Contact metamorphism of the rocks in the Pend Oreille district, northern Idaho.

Eocene Epoch - Green River Formation deposits are found in Colorado, Wyoming and Utah, generally along the present-day Green River. As an important lagerstatte, the Green River Formation sediments represent a continuous record of deposition that spans a 5 million year period from to mya.

In a detailed formation originally described by the first geologist to take a close look at it, (Bradley, Wilmot H.,"Varves and Climate of the Green River Epoch," in USGS Professional Paperp.

) the 4 cyclical layers range in thickness from mm for the sandstone to mm for the oilshale deposits. The Green River Formation, a lake deposit in Wyoming, Colorado, and Utah from the Eocene Epoch, contains too many varves to count.

Using average varve thicknesses in various beds of this formation and the total thickness of those beds, Bradley () calculated that ~ million varves are present, which indicates that the lake accumulated.The BioLogos Foundation has published a popular-level article by old-earth geologists Gregg Davidson and Ken Wolgemuth presenting arguments for an old earth.

One such argument involves counts of sedimentary laminations (“varves”) within the floor of Japan’s Lake Suigetsu.

Their article claims that the very large number of Lake Suigetsu varve counts is strong evidence for an old earth.