Showing papers in "Sedimentary Geology in 2005"

TL;DR: In this article, an attempt is made to evaluate 6 tectonic setting discrimination diagrams (1 discriminant function and 5 bivariate diagrams) frequently used by many researchers, and the results suggest that these diagrams do not work properly for the analyzed Miocene to Recent sediments.

TL;DR: The carbon-isotopic composition (y 13 C) of bulk carbonates, obtained from a transect of sites drilled through platform and peri-platform sediments of Holocene to Early Miocene age, has been compared to ascertain whether changes in the y 13 C can be correlated between sediment of equivalent ages and whether such changes can be related to global changes in dissolved inorganic carbon in the oceans over this time period as discussed by the authors.

TL;DR: In this paper, the usefulness of the morphological classification of carbonate platforms into rimmed shelves and ramps was reassessed, and it was suggested that the basinal and tectonic setting of a platform can be used to erect a first-order, genetic classification of a carbonate platform.

TL;DR: In this article, the responses of reef-dwelling cyanobacteria to environmental parameters associated with global change are prime topics for further research, with both ecological and geological implications.

TL;DR: In this article, a strategy for effective discrimination and provenance evaluation of sandstones transported by different sediment dispersal systems using an integrated program of heavy mineral analysis, mineral chemistry and zircon age dating is described.

TL;DR: The Opal Mound sinter at Roosevelt Hot Springs, Utah, U.S.A. as discussed by the authors dates to ∼1900 years BP and contains a diagenetic continuum from opal-A to quartz.

TL;DR: In this article, the authors defined, described, and interpreted eight architectural elements and 24 lithofacies from 15 outcrop locations representing the Neogene foreland basin in the Subandean Zone and the Chaco Plain.

TL;DR: In the Proterozoic volcano-sedimentary succession comprising successively younger Dhanjori, Chaibasa, Dhalbhum, Dalma and Chandil Formations of the Singhbhum crustal province, India records sedimentation and volcanism in a rapidly changing tectonic scenario as discussed by the authors.

TL;DR: In this paper, the authors compare the results of multiple ion probe intra-grain zircon analyses from a sample of psammite within the Dalradian Supergroup of Scotland with a data set from the same sample based on single grain ion probe analysis using various filtering methods.

TL;DR: In this article, detrital-zircon age distributions are used to define provenance in Holocene and Neogene fluvial sands from the Snake River system of the northern Rockies, U.S.A.

TL;DR: In this article, the authors point out important differences in the sequence stratigraphy of lacustrine and marine basins, related to the controlling factors of the depositional systems involved.

TL;DR: In this article, seven samples of early Pennsylvanian (early-middle Morrowan) sandstones and conglomerates from the Appalachian basin were collected along the orogen from eastern Pennsylvania to central Alabama for U-Pb dating of detrital zircons.

TL;DR: In this article, the authors collected sandstone samples from all Cenozoic formations of the nonmarine, internally drained Qaidam basin for provenance analysis to monitor possible changes in sandstone composition driven either by tectonics or climate.

TL;DR: In this article, a model for steep and high-relief margins fronting deep basins can also prograde and as such are somewhat perplexing. But, the model is based on two prograding Carboniferous examples: outcrops in Asturias, northern Spain, and isolated platforms of the North Caspian Basin, Kazakhstan.

TL;DR: The geometry of modern reefs has been likened to an empty bucket with the narrow reef rim comprising the container pail that encloses the water-filled bucket as mentioned in this paper, and the assumption that this constitutes a final geometry is not.

TL;DR: In this article, the authors investigated a Quaternary Gilbert-type gravel delta that was formed in an ice-marginal environment at the end of the last glacial period, and applied a multidisciplinary approach, sedimentological, geophysical, and hydrogeological data were integrated within the 3D modelling package Gocad (Earth Decision Sciences) to develop high-resolution 3D aquifer models.

TL;DR: In this paper, the Gufeng Formation is subdivided into the Phosphate Nodule-bearing Mudstone Member (PNMM) and the Siliceous Rock Member (SRM) in ascending order.

TL;DR: The siliceous sinter deposits of El Tatio geothermal field in northern Chile have been examined petrographically and mineralogically as discussed by the authors, showing that the microbial community is moderately diverse (cyanobacteria, green bacteria and diatoms).

TL;DR: In this article, the authors investigated the role of microbial mat origin of wrinkles on sandstone beds in the Palaeoproterozoic Koldaha Shale, Vindhyan basin, central India.

TL;DR: The Malampaya carbonate system was initiated in the Late Eocene, as an attached shelf influenced by significant clastic input, and the final demise of the carbonate buildup occurred in the late Early Miocene as mentioned in this paper.

TL;DR: In this article, three related basins in southern Turkey, the Ecemis Basin, the Karsanti Basin and the Aktoprak Basin, document the Neogene-Recent regional exhumation and surface uplift history of the Central Taurus Mountains.

TL;DR: In this article, the authors focused on the dynamics and stratal patterns of delta plain, delta-front platform deposits and suspended sediments and found that the sand content decreases significantly towards the tidal dominated areas due to limitation in transport capacity.

TL;DR: In this paper, the authors proposed a method of sequence stratigraphy to study the change in depositional trends in response to the interplay of accommodation and sediment supply, from the scale of individual depositional systems to entire sedimentary basinfills.

TL;DR: In this article, the rates of epiphytic carbonate production on two seagrass species Thalassodendron ciliatum (Ciliatum et al., 2013) and ThalASSia hemprichii (Hemprichi et al. 2013) were investigated in a sub-tropical reef-related environment in southern Mozambique.

TL;DR: In this paper, the origin of thick-bedded deep-water sandstones has generated much controversy in recent years, and two fundamentally different models have been proposed for beds with the same internal sedimentary characteristics: (1) progressive particle settling from the base of a turbulent flow; (2) en-masse freezing of a higher-concentration flow; and (3) Sandy debris flow model.

TL;DR: The Ulukisla Basin is interpreted as the result of extension (or transtension) coupled with subsidence and basic volcanism, and the basin was terminated by regional convergence, culminating in thrusting and folding in Late Eocene time as discussed by the authors.

TL;DR: In this paper, an early Pleistocene lacustrine deposits of the Baza Basin in SE Spain show a 2 m thick sheet with deformation structures intercalated within horizontal strata.

TL;DR: In this article, three well-documented, regional, semi-quantitative sea-level curves are chosen for reference (Jurassic of Britain, Cretaceous of Russia, Albian of Oman).

TL;DR: The geochemical composition of the siliciclastic sediments of the Okavango inland Delta of northwest Botswana have a modal composition of quartz arenites and result from a complex history, including transport by river and deposition in a nascent rift basin located in a desert environment.