Results 101 to 110 of about 1,851 (210)

Volcanically driven lacustrine ecosystem changes during the Carnian Pluvial Episode (Late Triassic). [PDF]

Proc Natl Acad Sci U S A, 2021
Lu J, Zhang P, Dal Corso J, Yang M, Wignall PB, Greene SE, Shao L, Lyu D, Hilton J.   +8 more
europepmc   +1 more source

Chemostratigraphy of the Lower Cretaceous dinosaur-bearing Xiagou and Zhonggou formations, Yujingzi Basin, northwest China

, 2019
The Early Cretaceous of northwest China has yielded abundant vertebrates, invertebrates, and plant fossils from numerous intermontane basins. Developing a chronostratigraphic context for these important fossil finds is important to understanding the ...
Marina B. Suarez (2852744), Timothy Milder (6925079), Daqing Li (228012), Peter Dodson (126764), Hailu You (6925076), Nan Peng (686031), Celina A. Suarez (2841911)   +6 more
core   +1 more source

A portable x-ray fluorescence (pXRF) elemental dataset collected from Cambrian-age sandstone aquifer material, Wisconsin, U.S.A. [PDF]

Data Brief, 2022
Zambito JJ, Haas LD, Parsen MJ.
europepmc   +1 more source

Biological diversification linked to environmental stabilization following the Sturtian Snowball glaciation. [PDF]

Sci Adv, 2023
Bowyer FT, Krause AJ, Song Y, Huang KJ, Fu Y, Shen B, Li J, Zhu XK, Kipp MA, van Maldegem LM, Brocks JJ, Shields GA, Le Hir G, Mills BJW, Poulton SW.   +14 more
europepmc   +1 more source

Sequence stratigraphy and chemostratigraphy of an Ediacaran-Cambrian foreland-related carbonate ramp (Bambuí Group, Brazil).

, 2019
In the terminal Neoproterozoic, drastic climate changes associated with biological innovations are coupled to isotope and elemental geochemical anomalies.
Caetano Filho, Sergio, Guacaneme, Cristian, Amaral, Matheus Henrique Kuchenbecker do, Amorim, Kamilla Borges, Peloso, Marília, Trindade, Ricardo Ivan Ferreira da, Santos, Gustavo Macedo de Paula, Reis, Humberto Luis Siqueira, Afonso, Jhon Willy Lopes, Babinski, Marly, Bedoya Rueda, Carolina   +10 more
core   +1 more source

Chemostratigraphy and paleoenvironmental analysis of sand-shale formations using core geochemical spectroscopy tools

Proceedings of the Nigerian Society of Physical Sciences
Modern investigations into spectral gamma-ray (SGR) records enhance understanding of sedimentary environments and paleoenvironmental conditions. This study examines a 111 m sand and shale interval in the Tak-1 well, Niger Delta Basin, to characterize ...
Oluwakemi Efemena, Franklin Lucas
doaj   +1 more source

Hirnantian (latest Ordovician) delta C-13 chemostratigraphy in southern Sweden and globally: a refined integration with the graptolite and conodont zone successions

, 2014
The delta C-13(org) chemostratigraphy of the Hirnantian and lower Rhuddanian in the biostratigraphically well-controlled Rostanga-1 drillcore from west-central Scania is used for an improved integration of the Hirnantian Isotope Carbon Excursion (HICE ...
Ahlberg, Per, Bergstroem, Stig M., Schmitz, Birger, Eriksson, Mats, Young, Seth A.   +4 more
core   +1 more source

Nickel isotopes link Siberian Traps aerosol particles to the end-Permian mass extinction. [PDF]

Nat Commun, 2021
Li M, Grasby SE, Wang SJ, Zhang X, Wasylenki LE, Xu Y, Sun M, Beauchamp B, Hu D, Shen Y.   +9 more
europepmc   +1 more source

A new upper Middle Ordovician-Lower Silurian drillcore standard succession from Borenshult in Ostergotland, southern Sweden: 2. Significance of delta C-13 chemostratigraphy

, 2012
A total of 239 isotope samples are used for establishing the delta C-13 chemostratigraphy in the upper Middle Ordovician to Lower Silurian succession in the approximately 70 m long Borenshult drillcore.
Lehnert, Oliver, Joachimski, Michael M., Calner, Mikael,, Bergstroem, Stig M., Lund University., Calner, Mikael   +5 more
core   +1 more source

Large igneous provinces played a major role in oceanic oxygenation events during the mid-Proterozoic

Communications Earth & Environment
Low atmospheric oxygen levels during the mid-Proterozoic were occasionally interrupted by transient high oxygen levels. The cause of mid-Proterozoic ocean redox variability remains unclear.
Anbo Luo, Guangyi Sun, Stephen E. Grasby, Runsheng Yin   +3 more
doaj   +1 more source