The larger benthic foraminifera Gyroconulina columellifera Schroeder & Darmoian, 1977 (type-locality: Maastrichtian Aqra Formation of Iraq) is described for the first time from two sections of the Maastrichtian Tarbur Formation of the Zagros Fold-Thrust-Belt, SW Iran. New details on its wall microstructure are provided. The microfacies is represented by bioclastic wacke-/pack-/grainstones with ...

Expansive playa-lake systems situated in high-altitude piggyback basins are important and conspicuous components of both modern and ancient cordilleran orogenic systems. Extant playa lakes provide vital habitat for numerous endemic species, whereas sediments from these deposystems may record signals of climate change or develop natural resources over geological time. Laguna de los Pozuelos (Nor...

Caddisfly larvae construct underwater protective cases using surrounding materials, thus providing information on environmental conditions in both modern and ancient systems. Microbial bioherms associated with caddisfly cases are found in the Berriassian-Hauterivian (~140-130 Ma) Shinekhudag Formation of Mongolia, and yield new insights into aspects of lacustrine paleoecosystems and paleoenviro...

This study mainly takes the thick oil layer in Lamadian Oilfield as an example. is developed area dominated by fluvial sediments, and reservoir sand body space changes frequently. If we only rely on traditional single well logging data, it difficult to directly effectively predict of whole sedimentary body, spatial configuration relationship between river boundary other microfacies can not be p...

Abstract The main goal of the paper is reconstruction a Middle Triassic buildup cropping out in central part Southern Apennines. reefs western Tethys realm are well known Northern and Alps. In contrast, few studies Anisian–Ladinian carbonate platforms southern Apennines available, due to diagenetic alteration tectonic disruption that hinder their paleoenvironmental stratigraphic reconstruction....