Results 91 to 100 of about 764 (194)

Sedimentology of silica granules and haematite in the 3.47 Ga Antarctic Creek Member, Mount Ada Basalt, Western Australia

Sedimentology, Volume 73, Issue 5, Page 1842-1866, August 2026.
ABSTRACT The Paleoarchean Antarctic Creek Member of the Mount Ada Basalt, Eastern Pilbara Terrane, Western Australia, includes beds of jasper and white chert composed of sand‐sized silica granules that often contain or are mixed with silt‐sized particles of haematite.
Donald R. Lowe, Gary R. Byerly
wiley   +1 more source

Emergence of Continents Stabilized the Bioavailability of Boron

Terra Nova, Volume 38, Issue 4, Page 278-284, August 2026.
ABSTRACT Boron is an essential element for the development of life on Earth; borates stabilize ribose in prebiotic reactions and facilitate metabolism in higher plants. There is, however, a relatively narrow surface boron concentration range over which borates stabilize and serve as a micronutrient rather than a toxin.
Brendan V. Dyck, Jon Wade
wiley   +1 more source

Synchronous Advance of the Alpine Glaciation Across the Northern and Southern Tibetan Plateau During the Mid‐Pleistocene Transition

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Chronological studies of glacial sediments from the Shishapangma and Yarlung Tsangpo River valley indicate that Quaternary glaciation on the southern Tibetan Plateau commenced at ∼0.75–0.83 Ma. However, the oldest glacial deposits in the northern plateau are dated to only ∼0.46 Ma, markedly later than the Middle Pleistocene glacial ...
Chengying Liu, Benhong Guo, Wenjiao Xiao, Zaijun Li, Linkai Wang, Fei Wang   +5 more
wiley   +1 more source

Progressive development of the Paleocene to early Miocene Shimanto accretionary complex in eastern Shikoku, Southwest Japan: response to magmatic arc evolution along the East Asian continental margin

Progress in Earth and Planetary Science
Evolution of the Shimanto accretionary complex suggests implications for the geological history of the East Asian continental margin. To better understand the tectonic evolution of the complex during Paleocene to early Miocene, we collected new ...
Hidetoshi Hara, Satoshi Tonai, Hinako Matsumoto   +2 more
doaj   +1 more source

DETRITAL ZIRCONS FROM THE PRECAMBRIAN OF THE IGARKA UPLIFT (NORTHWESTERN SIBERIAN PLATFORM)

Геодинамика и тектонофизика
Herein we report the results of LA-ICP-MS dating of detrital zircons from eight stratigraphic levels of the Proterozoic section of the Igarka uplift (northwestern Siberian Platform).
B. B. Kochnev, D. V. Semenova, V. B. Khubanov, M. K. Danukalova, V. V. Marusin, A. K. Khudoley   +5 more
doaj   +1 more source

Some general features of the Western Urals terrigenous deposits formation: Synthesis of U-Pb isotopic age data of detrital zircon and geochemical investigation of the sales and mudstones

Литосфера, 2016
The data on U-Pb-isotopic ages of detrital zircons from Riphean-Paleozoic and Early Triassic sandstones and geochemistry of shales and mudstones of the Western Urals are discussed.
A. V. Maslov, G. A. Mizens, G. M. Vovna, E. S. Pyzhova, N. B. Kuznetsov, V. I. Kiselev, Yu. L. Ronkin, A. Z. Bikbaev, T. V. Romanyuk   +8 more
doaj  

Detrital zircons and sediment dispersal in the Appalachian foreland [PDF]

Geosphere, 2017
William A. Thomas, George E. Gehrels, Stephen F. Greb, Gregory C. Nadon, Aaron M. Satkoski, Mariah C. Romero   +5 more
openaire   +1 more source

Detrital zircon typology and U/Pb geochronology for the Miocene Ladrilleros-Juanchaco sedimentary sequence, Equatorial Pacific (Colombia): New constraints on provenance and paleogeography in northwestern South America

Geologica Acta, 2017
Typology and internal texture analyses were performed on detrital zircons obtained from the Miocene sandstones of the Ladrilleros-Juanchaco sedimentary sequence (Colombia, Equatorial Pacific).
E. OSORIO-GRANADA, S.A. RESTREPO-MORENO, J.A. MUÑOZ-VALENCIA, R.A. TREJOS-TAMAYO, A. PARDO-TRUJILLO, A.A. BARBOSA-ESPITIA   +5 more
doaj  

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.
europepmc   +1 more source

U-Pb Detrital Zircon Geochronology and Its Tectonic Implications for the Middle Devonian at the Northwestern Margin of the Yangtze Block. [PDF]

ACS Omega
Guo T, Yang WF, Zeng L, Wang C.
europepmc   +1 more source