Stable Isotope Constraints on Marine Productivity Across the Cretaceous‐Paleogene Mass Extinction
Paleoceanography and Paleoclimatology, 2019 The effects of the Cretaceous‐Paleogene (K/Pg) mass extinction (~66 Ma) on marine primary and export productivity remain debated. We studied changes in carbon and nitrogen cycling in eight neritic and upper bathyal sections with expanded K/Pg boundary ...
J. Sepúlveda +5 more
semanticscholar +1 more source
The Paleogene ophiolite conundrum of the Iran–Iraq border region
Journal of the Geological Society, 2020 New and compiled geochemical, isotopic and geochronological data allow us to propose a new explanation for Paleogene oceanic magmatic rocks along the Iran–Iraq border.
H. Shafaii Moghadam +5 more
semanticscholar +1 more source
Uplift, Climate and Biotic Changes at the Eocene-Oligocene Transition in Southeast Tibet [PDF]
, 2018 The uplift history of southeastern Tibet is crucial to understanding processes driving the tectonic evolution of the Tibetan Plateau and surrounding areas.
Deng, Cheng-Long +15 more
core +3 more sources
GSA Bulletin, 2018 The geological history of the Burmese subduction margin, where India obliquely subducts below Indochina, remains poorly documented although it is key to deciphering geodynamic models for the evolution of the broader Tibetan-Himalayan orogen.
A. Licht +15 more
semanticscholar +1 more source
Detrital events within pelagic deposits of the Umbria-Marche basin (Northern Apennines, Italy). Further evidence of Early Cretaceous tectonics [PDF]
, 2016 Re-sedimented deposits characterize different stratigraphical intervals in the pelagic successions of the Umbria-Marche-Sabina Domain (Central and Northern Apennines, Italy).
CIPRIANI, ANGELO +3 more
core +1 more source
Biostratigraphy of the Danian/Selandian transition: A case study from Kamestan anticline section, northwest of Izeh city in Khuzestan province, Southern Iran [PDF]
, 2010 The planktonic foraminifera turnover across the Danian-Selandian boundary (early to late Paleocene, ~60 Ma) has been studied in the Kamestan anticline section. The studied interval span planktonic foraminifera zones P2-P3.
Abbas Sadeghi, Nasrin Hadavandkhani
core +1 more source
Accretionary Tectonics of the North American Cordillera [PDF]
, 1983 Continental geology stands on the threshold of a change that is likely to be as fundamental as plate-tectonic theory was for marine geology. Ongoing seismic-reflection investigations into the deep crustal structure of North America are verifying that ...
Saleeby, Jason B.
core +2 more sources
Mesozoic–Tertiary exhumation history of the Altai Mountains, northern Xinjiang, China: New constraints from apatite fission track data [PDF]
, 2005 This study uses apatite fission track (FT) analysis to constrain the exhumation history of bedrock samples collected from the Altai Mountains in northern Xinjiang, China.
Allen +37 more
core +1 more source
Shiyou shiyan dizhiThis study aims to systematically evaluate the hydrocarbon generation potential of the saline lacustrine mixed-source rocks in the upper member of the Lower Ganchaigou Formation in the Yingxiongling structural belt of the Western Qaidam Depression in the
Fei ZHOU +9 more
doaj +1 more source
Magnetostratigraphy of the Hell Creek and lower Fort Union formations in northeast Montana [PDF]
, 2010 Magnetostratigraphic evaluation of a well-exposed stratigraphic section in northeast Montana has been undertaken to expand upon and better understand the timing of the deposition of Hell Creek and Fort Union Formations.
LeCain, Rebecca
core +2 more sources