Showing papers in "Sedimentary Geology in 2016"

TL;DR: Procedure as discussed by the authors is a software package within the statistical programming environment R, which aims to facilitate the visualisation and interpretation of large amounts of sedimentary provenance data, including mineralogical, petrographic, chemical and isotopic provenance proxies, or any combination of these.

TL;DR: In this article, the authors proposed a new approach to the petrology of sand and sandstone, which is purely descriptive, objective, and free of ill-defined ambiguous terms and focuses on the nature and tectonostratigraphic level of source terranes.

TL;DR: In this article, a worldwide database of active and passive margin settings was established from published major and trace element geochemical data of Neogene to Quaternary siliciclastic sediments.

TL;DR: In this article, the concentration of chemical elements in terrigenous sediments is constrained by the original mineralogy of source rocks, and is thus provenance-dependent, and the mineralogy and geochemistry of sediments may undergo substantial modifications by diverse physical processes during transport and deposition, including recycling and hydraulic sorting by size, density or shape, and/or by chemical dissolution and precipitation during diagenesis.

TL;DR: The geochemistry of oil shale units of Hancili Formation in the Cankiri-Corum Basin (Central Turkey) was studied using various chemical analyses in this article, indicating that the samples contain abundant clay minerals as well as K-feldspar and carbonate.

TL;DR: The discovery of turbidites represents perhaps the major genuine advance of sedimentology during the twentieth century as discussed by the authors, and their associated deposits are referred to as extrabasinal turbidite.

TL;DR: In this paper, the authors used the organic maturity test, Field-Emission Scanning Electron Microscopy (FE-SEM), and X-ray Diffraction (XRD) to study the structure and effect of clay minerals on storing gas in shales.

TL;DR: In this article, the authors review the morphology and sedimentology of the downstream-migrating fluvial point bars (DMFPB) of modern meandering rivers and discuss their main architectural and sedimentological features.

TL;DR: In the Eagle Ford Formation of South Texas as mentioned in this paper, the authors found that around 85 percent of total quartz in these rocks, equal to about 12.6 volume percent, is authigenic.

TL;DR: In this paper, the authors performed element geochemical study on a large number of core samples collected from the Yanchang Formation of a new drilling well located in the south Ordos Basin.

TL;DR: In this article, the grain size control on sediment composition is investigated in modern proximal sediment from the Sila Massif, where basic to felsic intrusive rocks are exposed in a Mediterranean humid-temperate upland climate.

TL;DR: In this paper, the authors describe and analyse a number of hard-bed landform systems from the former Laurentide and British-Irish ice sheets, occurring in a variety of palaeo-ice stream settings.

TL;DR: A detailed mineral chemical investigation of glauconite within the condensed section deposits of the Cretaceous Karai Shale Formation, Cauvery Basin, India reflects a wide spectrum in chemical composition related to origin and evolution in different substrates, stratigraphic condensation, and post-depositional alteration as discussed by the authors.

TL;DR: In this article, sediment sources and dispersal patterns of the Triassic Yanchang Formation in the southwest Ordos Basin were investigated using net-sand ratio maps, sandstone modal analysis, and U-Pb detrital zircon geochronology.

TL;DR: The erodent layer hypothesis (ELH) as discussed by the authors proposes that drumlinization leaves no substantial stratigraphic record because it is primarily an erosional process that cuts an unconformity across pre-existing bed materials.

TL;DR: In this article, the authors investigated how sedimentary environments and facies changes can influence detailed structural development in slump sheets associated with mass transport deposits (MTDs) in the Dead Sea Basin, where six individual slump sheets (S1-S6) form MTDs in the Late Pleistocene Lisan Formation.

TL;DR: In this paper, the authors examined deep-water channel strata of the Late Cretaceous Nanaimo Group at Hornby and Denman islands, British Columbia, Canada.

TL;DR: In this article, the authors focused on the main weathering and pedogenetic processes, trying to understand apparent discrepancies between weathering grade classes based on field description and geomechanical properties, and two common weathering indices, such as the micropetrographic index (Ip) and the chemical index of alteration (CIA).

TL;DR: The origin of spherical-radial calcite bodies - spherulites - in sublacustrine, hyperalkaline and saline systems is unclear, and therefore their palaeoenvironmental significance as allochems is disputed as mentioned in this paper.

TL;DR: In this article, the authors modeled the geometrical roughening of bedding-parallel, mainly layer-dominated stylolites in order to understand their structural evolution.

TL;DR: In this paper, a comparison is made between the chemical composition of the Butler Hill Granite in an uplifted cratonic block of the St. Francois Mountain Igneous Complex and that of a small ~ 1m-thick regolith body, a weathered granite sample, and the basal quartz arenites of the Lamotte Formation immediately above the regolith.

TL;DR: In this paper, the authors focused on sedimentary research at the subaqueous Changjiang (Yangtze River) delta, based on five high-resolution seismic profiles and seven borehole cores with accurate AMS 14C datings.

TL;DR: In this paper, the authors demonstrate that stylolitization plays a crucial role in fluid flow and diagenesis of carbonate reservoirs during basin evolution, and the flanks of the oilfield (water zone) display more frequent presence and higher amplitude of stylolites, lower porosity and permeability, higher homogenization temperatures and more radiogenic composition of carbonates compared to the oil zone.

TL;DR: In this paper, a microscopic analysis of planar laminated, crustiform, nodular and rhythmic microfacies of the Crato Formation has been carried out and the results indicated a strong and pervasive biological activity in the formation of the crato limestone morphogenesis.

TL;DR: In this article, the authors discuss the significance of particular types of soft-sediment deformations very common within turbidite deposits, namely convolute laminations and load structures, which tend to increase near morphological obstacles, concomitantly with contained-reflected beds.

TL;DR: In this paper, the authors relate soil organic matter (SOM) characteristics to initial soil incubation carbon release from upper permafrost samples in Yedoma region soils of northeastern Siberia, Russia.

TL;DR: In this paper, the authors present detailed geochemical and mineralogical investigations from the lacustrine interval of the Hongliugou section in the northern Qaidam Basin to reconstruct salinity fluctuations in the paleolake during the late Eocene era.

TL;DR: In this article, the authors investigated the phosphorite samples from the uppermost Doushantuo Formation in South China and found that the carbon isotope compositions of authigenic calcite cements and nodules in these phosphorites are as low as VPDB.

TL;DR: In this paper, a large database was established from available literature data as well as new data acquired in the frame of this study for a set of Modern to Recent CATT (Ligurian ophiolites, Italy; the Chaine des Puys, Limagne graben and Paris Basin, France; Reunion Island, Indian Ocean; Jebel Oust, Tunisia).

TL;DR: In this paper, a detailed description of continuous drill cores of a well recently drilled during hydrocarbon exploration campaigns is presented, based on two transgressive-regressive 2nd-order sequences preserved within one of the focused grabens: (i) Sequence 1 includes the glaciogenic deposits of the basal Carrancas Formation that grade upward into the carbonate ramp successions of the Sete Lagoas Formation; (ii) Sequence 2 contains the siliciclastic-dominated and deep water to deltaic strata of the Serra de Santa Helena Formation and passes