Results 111 to 120 of about 5,309 (164)

Mesozoic Tectonic Setting and Evolution in Kuqa Depression of the Tarim Basin: A Study of Detrital Zircons and Geochemistry. [PDF]

ACS Omega
Li H, Liu Y, Wang S, Xi K, Yang X, Yu G.
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Fractal modeling of Baba Ali iron ore deposit geophysical data in western Iran for magnetic anomaly separation in GIS environment. [PDF]

Sci Rep
Seyedrahimi-Niaraq M, Shahsavani H.
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Lower Triassic Foraminifera from Nevada

Micropaleontology, 1960
Acid residues from limestone obtained from a single locality in eastern Nevada have yielded 5 lagenid species of Triassic foraminifera. The specimens are silicified and are present in over 600 ft. of section. The fauna is associated with Lower Triassic conodonts and occurs about 1,000 ft. above the Lower Triassic (Scythic) ammonoid guide, Meekoceras.
W. W. Schell, David L. Clark
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The Lower Triassic of South China

Journal of Asian Earth Sciences, 2002
Abstract The Permian–Triassic boundary of South China has been well-known and well-studied for decades, but what is relatively less noticed is that there are also many excellent marine Lower Triassic sequences in the region, covering various paleogeographic lithofacies.
Jinnan Tong, Hongfu Yin
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Permo-Triassic boundary and Lower to Middle Triassic in South Tibet

Journal of Asian Earth Sciences, 1998
Abstract The abundance of conodonts increases sharply across the Permian/Triassic boundary in South Tibet, and as a consequence Griesbachian assemblages are much better defined than Changxingian ones. The “ Otoceras latilobatum bed”, representing the base of the Triassic at Selong, is a condensed biocalcirudite including abundant macrofossils ...
E. Garzanti, A. Nicora, R. Rettori
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New lower Triassic ammonoids from South Primorye

Paleontological Journal, 2015
New ammonoid taxa of the families Aspenitidae (Aspenites radiatus sp. nov.), Hemilecanitidae (Deweveria kovalenkoi sp. nov.), Meekoceratidae (Subradioceras mikhailovichi gen. et sp. nov.), and Flemingitidae (Pseudoflemingites evolutus sp. nov., Rohillites orientalis sp.
O. P. Smyshlyaeva, Y. D. Zakharov
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Paleomagnetism of the Lower Triassic Moenkopi Formation

Geological Society of America Bulletin, 1974
Paleomagnetic studies on the upper half of the Moenkopi Formation have identified three reversed and three normal polarity zones; this brings the total number of polarity zones observed in this formation to ten. The variable thickness and presumed duration of these polarity zones when combined with smaller variations internal to individual polarity ...
C. E. HELSLEY, M. B. STEINER
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Lower Triassic salt range nautiloids

1953
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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The marine Triassic sequence stratigraphy of Lower Yangtze

Science in China Series D: Earth Sciences, 1998
Based on detailed field observation and multidisciplinary studies of integrated stratigraphy, the marine Lower and Middle Triassic of Lower Yangtze region is divided into five third-order sequences, the general approach of the outcrop sequence stratigraphical study of carbonate ramp is proposed, the pattern in the development of the Early and Middle ...
Tong Jinnan, Yin Hongfu
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New lower triassic ammonoids from New Zealand

New Zealand Journal of Geology and Geophysics, 1965
Abstract Prosphingites coombsi n. sp. is described from disturbed beds between Kaka Point and Nugget Point, south Otago. This species sugge5ts a late Scythian (Subcolumbites Zone) age for these strata. A summary of all species previously assigned to Prosphingites is included to substantiate the conclusions regarding the age assignment.
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