Results 91 to 100 of about 5,958 (223)

Salt spring from Halabutoaia (Neamt, Romania): contribution of phytoliths analysis to reconstruction of paleoenvironment and human activities

, 2016
Salt spring from Halabutoaia (Neamt, Romania): contribution of phytoliths analysis to reconstruction of paleoenvironment and human ...
Delhon, Claire, Danu, Mihaela, Weller, Olivier   +2 more
core  

Paleoenvironment of the Late Eocene Chadronian-Age Whitehead Creek Locality (Northwestern Nebraska)

, 2019
Toward the end of the Middle Eocene (40-37mya), the environment started to decline on a global scale. It was becoming more arid, the tropical forests were disappearing from the northern latitudes, and there was an increase in seasonality. Research of the
Mills, Samantha
core  

Az eocén-végi őskörnyezet rekonstruálása az Erdélyi-medence bentosz foraminifera-közösségei alapján: Late Eocene paleoenvironment reconstruction based on benthic foraminifera assemblages from Transylvanian Basin

, 2021
The Eocene/Oligocene cooling event had impacted the global ocean and consequently the marine biota, although we assume that its effect was dependent on regional paleoceanography. Therefore, we investigated benthic foraminiferal assemblages recovered from
Lóránd, SILYE, Anna-Réka, KICSI
core  

Variation characteristics and paleoclimatic/environmental implications of Mg/Ca, Sr/Ca, and Ba/Ca ratios in endogenic travertine from Baishuitai, Yunnan Province

Carsologica Sinica
Reconstructing high-resolution paleoclimate and environmental records is of great significance for deepening our understanding of the mechanisms driving global climate change and for predicting future climate trends.
Hailing GAN, Hongyang XU, Xi ZHAO, Limin ZHOU, Xiangmin ZHENG   +4 more
doaj   +1 more source

Fires in the valley? (Abridged version)

Gallia Préhistoire
The many combustion structures for heating stones recorded in the Seine-Eure confluence region (Normandy) are used here as a guiding thread in a study of the Neolithic occupations of riverbanks and valley bottoms.
François Charraud, Cyril Marcigny, Bruno Aubry, Hélène Seignac   +3 more
doaj   +1 more source

Mammalian faunas, ecological indices, and machine-learning regression for the purpose of paleoenvironment reconstruction in the Miocene of South America

, 2020
© 2019 Elsevier B.V. Reconstructing paleoenvironments has long been considered a vital component for understanding community structure of extinct organisms, as well as patterns that guide evolutionary pathways of species and higher-level taxa.
Spradley, JP, Glazer, BJ, Kay, RF
core   +1 more source

Microfacies and Stratigraphic Observations from the Bulz Dolomite Formation (Apuseni Mountains, Romania): Implications for Paleoenvironment and Regional Correlation

Geosciences
The Middle Triassic Bulz Dolomite Formation in the Apuseni Mountains (Romania) lacks detailed microfacies documentation and paleoenvironmental reconstruction, leaving its regional correlation unresolved.
Béla Raucsik, Andrea Varga, Olga Piros, Andrea Szuromi Korecz, Elemér Pál-Molnár   +4 more
doaj   +1 more source

Geochemical Record of Core PJ in Yangtze River Delta and Implications for Variations in Paleoenvironment

, 2011
Geochemical elements, significant indicator of environmental change，have been widely used in paleoenvironment research. By comparative analysizing of sediment’s geochemical characterstics of core PJ and core ZX-1, almost opposite relations was found ...
Xiang Min Zheng, Li Min Zhou, Yong Hong Wu   +2 more
core   +1 more source

High-Frequency Lacustrine Lithological and Geochemical Variations in the Eocene Qaidam Basin: Implications for Paleoenvironment Reconstruction

Lacustrine sedimentary processes exhibit high sensitivity to paleoenvironmental changes, often manifesting as high-frequency sedimentary cycles that control the complex variations in sedimentary structure, mineral composition, and element distribution ...
Ying Xiong, Yafeng Li, Xiucheng Tan, Menglin Zhang, Wei Deng, Juan Wang, Haoting Xing, Shituan Xue, Kunyu Wu, Songtao Wu, Xiangjun Liu, Peng Pang   +11 more
core   +1 more source

The paleoenvironment of anaerobic sediments in the Late Mesozoic South Atlantic Ocean

, 1977
Laminated dark calcareous oozes/chalks/limestones as well as clayey and marly mudstones/claystones with high organic carbon contents were deposited during Jurassic, Early and Late Cretaceous times in the Atlantic, Pacific and Indian Oceans.
Thiede, Jörn, Van Andel, Tjeerd H.
core   +1 more source