A novel chronostratigraphic framework for the Aptian–Albian paleoclimate events [PDF]
Scientific ReportsThe Aptian–Albian interval was marked by paleoclimatic changes encompassing volcanic events and monsoonal activity of which the precise timing were not well-defined.
João M. F. Ramos +11 more
doaj +2 more sources
Geophysical Monograph Series, Page 1-26., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst +8 more
wiley +6 more sources
Biostratigraphy of the Cretaceous deposits based on ammonites in the southwest of Qayen area (Qumenjan section) [PDF]
Journal of Stratigraphy and Sedimentology Researches, 2021 Ammonite biostratigraphy could be used in age determination and correlation of rock units in different sedimentary basins. Qumenjan section with 125 meters thickness is mainly formed by grey sandy limestone with grey and thick-bedded limestone ...
Seyed Naser Raisossadat +3 more
doaj +1 more source
The Continental Intercalary in Algeria: Analysis, Survey and Perspectives for Green Agriculture Development [PDF]
Al-Qadisiyah Journal For Agriculture Sciences, 2022 The Northern Sahara Aquifer System (NSAS) is a complex system that includes several aquifers overlying most areas. The Continental Intercalary, also known as the "Albian groundwater" is an aquifer with impressive characteristics.
Salim Etsouri +5 more
doaj +1 more source
Research and Geoconservation of the Albian “Giant” Ammonites Collection in the Basque Coast UNESCO Global Geopark [PDF]
Geoconservation Research, 2021 The Basque Coast UNESCO Global Geopark is known worldwide for its great thickness of Upper Cretaceous and Paleocene “flysch” formations. The K/Pg and P/E boundaries are among the most popular sites, together with the IUGS-ICS designated Selandian and ...
Asier Hilario +2 more
doaj +1 more source
Assessment of prospects for petroleum bearing Aptian-Albian-Cenomanian strata of the Yamal peninsula - north of Western Siberia, on the basis of 2D seismic survey [PDF]
Нефтегазовая геология: Теория и практика, 2022 The article presents a brief description of the geological structure and petroleum potential of the Aptian-Albian-Cenomanian strata. On the basis of 2D seismic exploration as part of the Aptian and Albian-Cenomanian levels, new promising objects were ...
Smirnov O.A., Borodkin V.N.
doaj +1 more source
New ophthalmosaurid ichthyosaurs from the European lower cretaceous demonstrate extensive ichthyosaur survival across the Jurassic–Cretaceous boundary [PDF]
, 2012 Background Ichthyosauria is a diverse clade of marine amniotes that spanned most of the Mesozoic. Until recently, most authors interpreted the fossil record as showing that three major extinction events affected this group during its history: one ...
A Sirotti +91 more
core +13 more sources
Cassiopid gastropods from the cretaceous of Western Serbia [PDF]
Geološki Anali Balkanskoga Poluostrva, 2007 Three species of Cassiopidae (Cerithioidea, Gastropoda) are described from outcrops in the vicinity of the villages Rastište and Mokra Gora in western Serbia. They occur in marly limestones of near shore shallow water deposits.
Banjac Nenad, Bandel Klaus, Kiel Steffen
doaj +1 more source
Does aid fuel corruption? New evidence from a cross-country analysis
Development Studies Research, 2021 This study estimates the effect of foreign aid on corruption using a Two-Step Least Squares method. We address endogeneity using instrumental variables that capture geographical and cultural proximities between donor and recipient countries.
Albian Krasniqi, Venera Demukaj
doaj +1 more source
Mid-Cretaceous paleoenvironmental changes in the western Tethys [PDF]
Climate of the Past, 2018 We present a continuous record of surface water temperature and fertility variations through the latest Barremian–Cenomanian interval (ca. 27 Myr) based on calcareous nannofossil abundances from the western Tethys.
C. Bottini, E. Erba
doaj +1 more source