Uppermost Jurassic to Lower Cretaceous benthic foraminiferal biostratigraphy at ODP Site 765 on the Argo Abyssal Plain. [PDF]
, 1992 Benthic foraminifers were studied in 99 samples collected from the lower 200 m of Hole 765C. The studied section ranges from the Tithonian to Aptian, and benthic foraminifers can be subdivided into five assemblages on the basis of faunal diversity and ...
Geroch, S. +2 more
core
The sinemydid turtle Ordosemys from the Lower Cretaceous Mengyin Formation of Shandong, China and its implication for the age of the Luohandong Formation of the Ordos Basin [PDF]
PeerJ, 2019 Chronostratigraphic correlation of terrestrial Early Cretaceous biotas in China is highly problematic due to the lack of marine deposits, few absolute dates, and limited number of index fossils.
Da-Qing Li +5 more
doaj +2 more sources
Frontiers in Earth Science, 2023 Integrated organic petrographic and geochemical analyses were made on organic-rich marine carbonate and mixed clastic-carbonate rocks of Middle–Late Jurassic and Early Cretaceous age from the Shushan Basin, Egypt to evaluate their hydrocarbon potential ...
Mohammed H. Aljahdali +6 more
doaj +1 more source
Toarcian oceanic anoxic event: An assessment of global causes using belemnite C isotope records [PDF]
, 2005 Two hypotheses have been proposed to explain simultaneous large negative excursions (up to 7% PeeDee belemnite) in bulk carbonate (delta(13)C(carb)) and organic carbon isotope records (delta(13)C(org)) from black shales marking the Toarcian oceanic ...
Bailey, TR +5 more
core +1 more source
Iraqi Geological Journal, 2023 The facies analysis, mineralogy and depositional environment of the Cretaceous Sarmord Formation are studied in two outcrops in the Imbrication and High Folded Zones of Northeastern Kurdistan region of Iraq.
Sardar Balaky +4 more
doaj +1 more source
Biostratigrafie spodní křídy manínské jednotky (lom Butkov, Strážovské vrchy, Západní Karpaty) [PDF]
, 2003 This paper is a continuation of systematic stratigraphical research of Lower Cretaceous sequence of the Manín Unit excavated in the Butkov quarry. Calcareous deposits are significant especially by richness of ammonites.
Halásová, Eva +3 more
core +1 more source
Exhumation of the Sierra de Cameros (Iberian Range, Spain): constraints from low-temperature thermochronology [PDF]
, 2008 We present new fission-track and (U–Th)/He data from apatite and zircon in order to reconstruct the exhumation of the Sierra de Cameros, in the northwestern part of Iberian Range, Spain. Zircon fission-track ages from samples from the depocentre of the
Casquet +17 more
core +2 more sources
Journal of Petroleum Geology, Volume 49, Issue 2, Page 312-345, April 2026.ABSTRACT The Lower Cretaceous Yamama Formation of southern Iraq represents a key carbonate reservoir within Iraq and the Middle East, yet its complex depositional facies architecture and diagenetic alterations present challenges for predicting reservoir quality.
A. K. A. Mohammed +8 more
wiley +1 more source
Re-evaluation of the Mentelle Basin, a polyphase rifted margin basin, offshore southwest Australia: new insights from integrated regional seismic datasets [PDF]
Solid Earth, 2011 Vintage 2-D (two-dimensional) seismic reflection surveys from the sparsely explored Mentelle Basin (western Australian margin) have been reprocessed and integrated with a recent high-quality 2-D seismic survey and stratigraphic borehole data ...
D. Maloney +4 more
doaj +1 more source
An Early Cretaceous astropectinid (Echinodermata, Asteroidea) from Patagonia (Argentina): a new species and the oldest record of the family for the Southern Hemisphere [PDF]
, 2014 Los asterozoos son echinodermos de vida libre, con forma de estrella, y componentes importantes de las faunas marinas bentónicas a nivel mundial. Su registro fósil, sin embargo, es pobre y fragmentario, probablemente debido a la desarticulación de los ...
Carrizo, Martin Alejandro +3 more
core +1 more source