Abstract The Sumerian culture flourished within the Tigris and Euphrates rivers floodplains along their deltaic systems, which ca. 6000 yr were located ~250–260 km inland from present Persian Gulf. Here, large marshes crossed by an intricate network of channels where several human settlements developed. In this paper, we describe in detail paleoenvironmental context site Abu Tbeirah (third mill...

The Miocene sedimentary rocks in Samarinda area constrains organic rich sediments, which are considered as a good source hydrocarbon the East Kutai Sub-Basin, Kalimantan. high material content within sediments is related to dynamics of depositional environment deltaic setting. accumulation and characteristics matter this may be influenced by multiple factors, under complex physical-chemical pro...

Light carboxylic acids are major chemical species in acidic precipitation, particularly in remote areas. They play a significant part in the acidification of the environment. Because the organic acids relate closely to the biosphere in the source, their records in snow and ice provide insight into the changes of paleoenvironment and biogeochemical cycles of C, H, O and S. However, the trace con...

BACKGROUND Central Patagonia, Argentina, preserves an abundant and rich fossil record. Among vertebrate fossils from the Upper Cretaceous Bajo Barreal Formation of Patagonia, five individuals of the small, non-avian theropod dinosaur Aniksosaurus darwini were recovered. Group behavior is an important aspect of dinosaur paleoecology, but it is not well-documented and is poorly understood among n...

Highly specialized obligatory cave beetles endemic to the French Pyrenees offer an opportunity to investigate the relative importance of environmental conditions and ecological characteristics on the organization of genetic variability, to describe the genetic structure of populations, and to assess the extent of gene flow between local populations in relation to geologic structure. Twenty-thre...

HydroTrend, a climate-driven hydrologic transport model, is used to simulate the suspended sediment discharge of the Waipaoa River System (WRS) over the last 5.5 kyr. We constrain the precipitation input with a paleo-rainfall index derived from the high-resolution Lake Tutira storm sediment record. The simulation is extended to 22 ka using a lower resolution version of the model, constrained by...

The sedimentary basins of Yunnan, Southwest China, record detailed histories Cenozoic paleoenvironmental change. They track regional tectonic and palaeobiological evolution, both which are critically important for the development modern floral diversity in southwestern China throughout Asia more generally. However, to be useful, archives within have placed a well-constrained timeframe independe...