The Middle Jurassic Brent Group sediments and their correlatives on the Norwegian shelf are, in economic terms, the most important hydrocarbon reservoir in NW Europe. In 1971 the Brent Field was discovered by Shell/Esso and tested in 1972 with 1.8 billion barrels of recoverable oil; nine major Brent sandstone fields were discovered by the end of 1973 (Brennand et al. 1990). In 1980 the northern...

Geochronology and thermochronology on detrital material provides unique constraints on sedimentary provenance, depositional ages, and orogenic evolution of source terrains. In this paper we describe a method and case-studies of measurement of both U/Pb and (U-Th)/He ages on single crystals of zircon that improves the robustness of constraints in each of these areas by establishing both formatio...

Snowpits along a traverse from coastal East Antarctica to the summit of the ice sheet (Dome Argus) are used to investigate the post-depositional processing of nitrate (NO−3 ) in snow. Seven snowpits from sites with accumulation rates between 24 and 172 kg m a were sampled to depths of 150 to 300 cm. At sites from the continental interior (low accumulation, < 55 kg m a), nitrate mass fraction is...

The Barstovian of the northern Rocky Mountains, U.S.A., is known mainly from deposits east of the continental divide; this article provides new information from west of the divide. The biostratigraphic, geologic, magnetostratigraphic, and lithostratigraphic setting is reported for an unusually complete Arikareean, Hemingfordian, and Barstovian stratigraphic section known as the Railroad Canyon ...

The Paleocene/Eocene boundary has been a significant subject globally for sometimes now. This work focuses on the application of sequence stratigraphy where diagnostic microfossils trends of abundances and qualitative parameters can be integrated with sedimentology in the recognition of stratigraphic surfaces. Such surfaces / boundaries are highstand systems tract (HST), transgressive systems t...

The Early Pleistocene archaeological evidence from the fluvio-lacustrine sequence of the Nihewan Basin (North China) offers an excellent opportunity to explore early human evolution and behavior in a temperate setting in East Asia, following the earliest 'Out of Africa'. Here we present the first comprehensive study of the Feiliang (FL) site, with emphasis on the archaeological sequence, site i...

Introduction: South Polar Layered Deposits (SPLD) have been analyzed by several authors [1,2,3, 4] in order to describe mayor layers sequences using visible images [1,2,3,4] and sounding radar datasets (Mars Express MARSIS and MRO ShaRAD [1,2]), defining different units. [1] mapped three main SPLD units through several distinctive erosion-resistant marker beds or packets of layers. In particula...

The existing literature on resulting reservoir geomorphology after hydraulic reservoir flushings has been systematically examined and evaluated. The emphasis has been put on cross-sectional and longitudinal variations in geomorphology due to flushing, but also the available literature on physical models and analytical modeling and a short section on depositional processes are included as well.

Abstract Equatorial Layered Deposits (ELDs) reveal aspects of past depositional environments useful for timing climatic and geological events on Mars. However, their formation has several contending hypotheses which reflect a diverse range possible environments. To better constrain mechanism, we analyzed the stratigraphic mineralogical characteristics mapped distribution ELDs within three close...

paris polyphylla smith var. yunnanensis (liliaceae) is an important traditional medicinal plant of the yunnan province in china. however, the genomic information regarding this plant is limited. to further understand its molecular background, we conducted illumina hiseq 2000 second-generation sequencing of this plant species. approximately 30,198,679 reads with an average length of 202 bases we...