Results 51 to 60 of about 1,711 (160)

Distribution of Glycerol Dialkyl Glycerol Tetraethers (GDGTs) in Microbial Mats From Holocene and Miocene Sabkha Sediments

Frontiers in Earth Science, 2019
Sabkhas are important settings for understanding early earth biological environments, and the algal mats associated with them are thought to be potential source rocks for hydrocarbon production.
Benjamin Petrick, Lars Reuning, Lars Reuning, Alfredo Martínez-García   +3 more
doaj   +1 more source

Transition of Glacial Regimes Recorded at IODP Site U1524 in the Ross Sea, Antarctica, Over the Last 800 Thousand Years

Paleoceanography and Paleoclimatology, Volume 41, Issue 10, October 2026.
Abstract Reconstructing past interactions between the West Antarctic Ice Sheet (WAIS) and changing environmental conditions in the Ross Sea region can help determine long‐term WAIS stability. Existing sedimentary records reveal changes to oceanography, sea ice and ice sheet extent over the glacial‐interglacial cycles of the last ∼800 kyr.
J. W. Marschalek, T. van de Flierdt, M. O. Patterson, G. Grant, S. Kim, W. Xiao, Q. Li, G. Cortese, S. Bombard, R. M. Leckie, H. Ishii, T. van Peer, C. Xuan, S. Sugisaki, J. Müller, D. Kaufman, D. K. Kulhanek, K. J. Licht, S. R. Hemming, O. Seki, E. Colizza, F. Torricella, J. Gales, B. W. Romans, N. Varela, L. De Santis, R. M. McKay   +26 more
wiley   +1 more source

GDGTs of sediment core PG2303-1

, 2017
GDGTs of sediment core PG2303-
Riedel, Thorsten, Thorsten Riedel (8019233)   +1 more
core   +1 more source

Ecological and Hydrological Modulation of Land Surface Temperature in the East Asian Monsoon Margin During Pliocene‐Pleistocene Global Cooling

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract The response of terrestrial climate to future warming remains debated. The Pliocene, with CO2 levels similar to today, is an important analog for the future. The East Asian monsoon marginal region is one of the most climate sensitive regions on Earth. Based on contemporaneous aeolian sediments and aquatic‐influenced alluvial sediments from the
Chen Chen, Hanzhi Zhang, Huayu Lu, Cheng Zhao, Yuqiang Zeng, Jian Yu   +5 more
wiley   +1 more source

Sedimentary lipid biomarkers in the magnesium rich and highly alkaline Lake Salda (south-western Anatolia)

Journal of Limnology, 2016
Lake Salda located in south-western Anatolia is characterized by the presence of living stromatolites and by a low diversity of both phytoplankton and zooplankton due to high pH and magnesium concentration.
Jérôme Kaiser, Bora Ön, Helge W. Arz, Sena Akçer-Ön   +3 more
doaj   +1 more source

Sedimentary lycopane/n‐C31 ratio as a proxy for bottom water hypoxia in coastal ocean

Limnology and Oceanography Letters, Volume 11, Issue 5, September 2026.
Abstract Bottom‐water hypoxia on continental shelves is intensifying under climate change and eutrophication, yet long‐term records remain scarce. Here we show that the sedimentary lycopane/n‐C31 ratio reliably records bottom‐water oxygenation in the seasonally hypoxic Yangtze River Estuary.
Qingnan Song, Huamao Yuan, Jinming Song, Guiling Zhang, Fengmin Pan, Xuegang Li, Liqin Duan   +6 more
wiley   +1 more source

GDGTs in surface sediments from Herschel Island

, 2017
GDGTs in surface sediments from Herschel ...
Riedel, Thorsten, Thorsten Riedel (8019233)   +1 more
core   +1 more source

Source, transport and fate of soil organic matter inferred from microbial biomarker lipids on the East Siberian Arctic Shelf [PDF]

Biogeosciences, 2016
The Siberian Arctic contains a globally significant pool of organic carbon (OC) vulnerable to enhanced warming and subsequent release by both fluvial and coastal erosion processes.
J. Bischoff, R. B. Sparkes, A. Doğrul Selver, R. G. M. Spencer, Ö. Gustafsson, I. P. Semiletov, O. V. Dudarev, D. Wagner, E. Rivkina, B. E. van Dongen, H. M. Talbot   +10 more
doaj   +1 more source

GDGTs in surface sediments off Herschel Island

, 2017
GDGTs in surface sediments off Herschel ...
Riedel, Thorsten, Thorsten Riedel (8019233)   +1 more
core   +1 more source

GDGTs in surface sediments from Komakuk Beach

, 2017
GDGTs in surface sediments from Komakuk ...
Riedel, Thorsten, Thorsten Riedel (8019233)   +1 more
core   +1 more source