Results 51 to 60 of about 855 (200)

A Tropically Hot Late Jurassic North American Sundance Sea: Evidence for the Oxfordian Warm Interval

open access: yesPaleoceanography and Paleoclimatology, Volume 41, Issue 7, July 2026.
Abstract The Late Jurassic greenhouse climate was characterized by elevated atmospheric CO2 (pCO2) at 600–1,000 ppm and sea‐surface temperatures substantially warmer than today. These conditions peaked during the Oxfordian, when extensive epicontinental seaways, including the North American Sundance Sea, dominated mid‐latitude paleoceanography.
R. W. Reynolds   +9 more
wiley   +1 more source

(Fig. 3d) Paleosalinity reconstruction for sediment core NEAP-18K

open access: yes, 1999
(Fig.
Mark R Chapman (6967613)   +11 more
core   +1 more source

Quantification of the Eocene–Oligocene transition in the Zagros Foreland Basin: Palaeogeographic control on sequence architecture and tectonic signal preservation

open access: yesThe Depositional Record, Volume 12, Issue 3, June 2026.
New bio‐sequence framework for the Eocene–Oligocene transition in Zagros. Geochemical data validate basin depth control on SB1 vs. SB2 boundaries. SEM‐EDS analyses confirm subaerial exposure versus continuous deposition. Sensitivity analysis quantifies sub‐10% uncertainty in stratigraphic interpretations. Resolves the Pyrenean orogeny's variable impact
Sahar Rokni   +4 more
wiley   +1 more source

Measure of paleosalinity of sediment core GIK23415-9

open access: yes, 2004
Measure of paleosalinity of sediment core GIK23415-
Weinelt, Mara, Mara Weinelt (6972803)
core   +1 more source

Characteristics of Lacustrine Diamictite and Analysis of Diagenetic Reservoir Facies in the Neogene Lower Youshashan Formation in the Dafengshan Tectonic Belt in the Qaidam Basin

open access: yesEnergy Science &Engineering, Volume 14, Issue 4, Page 1976-1989, April 2026.
Based on field outcrop data, core descriptions, comprehensive thin section data (plain, cast, and fluorescent), scanning electron microscopy, whole rock analysis via X‐ray diffraction, physical property tests, element logging, core recording, and oil pilot tests, we propose utilizing a mature and practical three component classification method for ...
Lin Xie   +7 more
wiley   +1 more source

Geochemical characteristics and geological significance of Carboniferous Benxi coal rock gas in central and eastern Ordos Basin

open access: yesShiyou shiyan dizhi
The coal rock gas resources in the 8# coal seam of the Carboniferous Benxi Formation in the central and eastern Ordos Basin have great potential. By analyzing the gas components and carbon and hydrogen isotope compositions of the desorbed gas from 33 ...
Kang MENG   +11 more
doaj   +1 more source

(Fig. 3d) Paleosalinity reconstruction for sediment core MD95-2036

open access: yes, 1999
(Fig.
Mark R Chapman (6967613)   +11 more
core   +1 more source

Data for: Paleolake salinity evolution in the Qaidam Basin (NE Tibetan Plateau) in ~42-29 Ma: Links to global cooling and Paratethys retreat

open access: yes, 2021
This dataset provides a quantitative boron-derived paleosalinity (~42-29 Ma) in the Hongliugou section in the Qaidam ...
Yang, Y (via Mendeley Data), Yang, Yibo
core   +1 more source

Temperature Controls on Carbon‐Sulfur Diagenesis in Deep Hydrothermal Subseafloor Sediments

open access: yesGeophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract Carbon mobilization and sulfur transformation play a significant role in deep carbon and sulfur cycling. However, sulfur biogeochemistry and its coupling with carbon and iron cycling remain poorly constrained in hydrothermal sediments. We investigated the effect of temperature on carbon‐sulfur‐iron diagenesis in subsurface sediments (≤370 m ...
Bing‐Zheng Wu   +6 more
wiley   +1 more source

Geochemical characteristics and paleoenvironmental implications of beachrocks in northwestern Hainan Island

open access: yesFrontiers in Earth Science
A systematic investigation was performed on the petrological and geochemical characteristics of Late Pleistocene beachrocks in the Paipu area, Danzhou City, northwestern Hainan Island.
Chaoyun Yang   +11 more
doaj   +1 more source

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