Results 11 to 20 of about 855 (200)
Estuarine Processes and Their Stratigraphic Record: Paleosalinity and Sedimentation Changes in the Hudson Estuary (North America) [PDF]
Marine Geology, 2004 Paleosalinity estimates and rates of sedimentation inferred from core samples from the Hudson estuary for the interval between 6.4 and 1.3 ka indicate a possible role for the estuarine turbidity maximum (ETM) in influencing patterns of estuarine sedimentation at centennial to millennial time scales.
Suzanne M. Carbotte +2 more
exaly +5 more sources
Geochemistry, Geophysics, Geosystems, 2023 Continental interiors were flooded by epeiric seas during many intervals of the geologic past. Few modern analogs exist for these environments, however, and basic variables such as redox, salinity, and restriction are difficult to reconstruct in deep ...
Geoffrey J. Gilleaudeau +7 more
doaj +2 more sources
Geofluids, 2023 Organic-rich continental shale, widespread in the Sichuan Basin during the deposition of the Jurassic Dongyuemiao Member (J1d), is considered the next shale hydrocarbon exploration target in southern China.
Yadong Zhou +8 more
doaj +2 more sources
Oxygen Isotopes in Authigenic Clay Minerals: Toward Building a Reliable Salinity Proxy [PDF]
Geophysical Research Letters, 2020 Most clay minerals in sedimentary environments have traditionally been considered to be of detrital origin, but under certain conditions, authigenic clay minerals can form at low temperature through the transformation of precursor clays or as direct ...
D. Gebregiorgis +7 more
doaj +2 more sources
EnergiesThe shales of the Taiyuan Formation and Shanxi Formation in the North China Basin have good prospects for shale gas exploration and development. In this study, Well KP1 at the northern margin of the North China Basin was used as the research object for ...
Hanyu Zhang +7 more
doaj +2 more sources
PALEOSALINITY AND PALEOPRODUCTIVITY OF THE SENTOLO FORMATION, SOUTH SERAYU BASIN
Journal of Earth and Marine Technology (JEMT)The Sentolo Formation is one of the stratigraphic units in the Kulon Progo Mountains located in the South Serayu Basin [1] that characterized by a relatively extensive distribution of limestone. The Sentolo Formation is known to have been deposited in marine environments ranging from the neritic to bathyal zones, which provide important ...
Esti Solehatun +2 more
openaire +2 more sources
Enhanced deglacial carbon transport by Pacific southern-sourced intermediate and mode water [PDF]
Nature CommunicationsSouthern-sourced Antarctic Intermediate Water (AAIW) and Subantarctic Mode Water (SAMW) are currently major sinks of atmospheric CO2. During the last deglaciation, atmospheric CO2 levels increased significantly during two specific time periods, Heinrich ...
Cyrus Karas +4 more
doaj +2 more sources
Diatom-Based Paleoenvironmental Reconstruction of Lake Telmen for the Last 6230 Years [PDF]
Mongolian Journal of Biological Sciences, 2003 The preserved diatom flora in a 14C dated (0-6230 yBP), 343 cm long core sequence from Lake Telmen, Mongolia, was investigated to determine the nature of the lake-ecosystem and watershed response to Late ...
N.Soninkhishig, M.B.Edlund, J.A.Peck
doaj +1 more source
PALEOLIMNOLOGICAL ENVIRONMENTS AND ORGANIC ACCUMULATION OF THE NENJIANG FORMATION IN THE SOUTHEASTERN SONGLIAO BASIN, CHINA [PDF]
Oil Shale, 2015 Thick layers of dark lacustrine mudstone in the Nenjiang FormaÂtion record the evolution of local depositional environments in the Songliao Basin.
Hansheng Cao +4 more
doaj +1 more source
Frontiers in Earth Science, 2022 The Upper Permian Linghao Formation marine shale and contemporaneous transitional shale are the most potential shale gas targets in the Nanpanjiang basin, which is characterized by considerable TOC content, wide distribution, and considerable shale ...
Yifan Gu +13 more
doaj +1 more source