Results 91 to 100 of about 1,853 (212)

Cambrian explosion condensed: High-precision geochronology of the lower Wood Canyon Formation, Nevada. [PDF]

Proc Natl Acad Sci U S A, 2023
Nelson LL, Crowley JL, Smith EF, Schwartz DM, Hodgin EB, Schmitz MD.   +5 more
europepmc   +1 more source

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

, 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

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

, 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 of Jurassic-cretaceous Italian carbonate platforms

, 2002
Samples of shallow-water carbonates were collected from Jurassic and Cretaceous Italian carbonate platforms and subjected to petrographic, diagenetic and chemostratigraphic analyses (87Sr/86Sr, δ13Ccarb, δ13Corg, δ18O). In general, the new chemostratigraphic data generated reflect trends established by previous work, some of which has been carried out ...
Woodfine, R, Woodfine, Richard Gareth
openaire   +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 [PDF]

, 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

Facies analysis, sequence stratigraphy and chemostratigraphy of the Sete Lagoas Formation (Bambui Group), northern Minas Gerais State, Brazil: evidence of a cap carbonate deposited on the Januária basement high

Brazilian Journal of Geology
: Sedimentary rocks of the Sete Lagoas Formation, exposed in the left margin of the São Francisco river (Minas Gerais State, Brazil), were deposited on the Januária-Itacarambi basement high.
Pascoal Perrella Júnior, Alexandre Uhlein, Gabriel Jube Uhlein, Alcides Nobrega Sial, Antônio Carlos Pedrosa-Soares, Otávio Nunes Borges de Lima   +5 more
doaj   +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 [PDF]

, 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

A Multiple-Proxy Geochemical Investigation of a Shallow Core from Doggerland: Implications for Palaeolandscape and Paleoenvironmental Reconstruction

Humans
The exploration of Doggerland, the prehistoric landscape that once connected Britain to the continent, remains one of Europe’s most significant archeological challenges.
Mohammed Bensharada, Alex Finlay, Ben Stern, Richard Telford, Vincent Gaffney   +4 more
doaj   +1 more source

Quantitative and Nuanced Approaches Elucidate Carbon Isotope Records

Geochemistry, Geophysics, Geosystems
Earth scientists have leveraged carbon isotope records to interpret Earth history and establish chronostratigraphic frameworks for decades (e.g., Halverson et al., 2005, https://doi.org/10.1130/b25630.1; Kaufman & Knoll, 1995, https://doi.org/10.1016 ...
Cedric J. Hagen
doaj   +1 more source

A Great late Ediacaran ice age. [PDF]

Natl Sci Rev, 2023
Wang R, Shen B, Lang X, Wen B, Mitchell RN, Ma H, Yin Z, Peng Y, Liu Y, Zhou C.   +9 more
europepmc   +1 more source