Detrital chromian spinels from the Minokuchi and Uzuhiki Formations in the Itsukaichi area of the Kanto Mountains, central Japan
The AA. describe the occurrence of detrital chromian spinels from the Upper Cretaceaous Uzuhiki Formation and Lower Jurassic? Minokuchi Formation, and discuss their significance briefly.
Petrology and paleoenvironmental significance of detrital sand and silt in a stalagmite from Drotsky's cave, Botswana
Analysis of a stalagmite from northwestern Botswana shows that variation in the abundance of detrital grains, which can be conveniently approximated by gray-scale measurements, provides a potentially valuable paleoclimatological record. Gray scale
(a measure of the lightness or darkness of the cut speleothem is inversely correlative with detrital content and thus with periods of decreased rainfall. It also correlates positively with historical records of rainfall and with rates of speleothem growth
Soil and (soilarenite) and related cohesive detrital deposits : examples from a wet temperate climatic zone
This article is an attempt to summarize the actual state of knowledge concerning the cohesive detrital deposits and to elaborate a more comprehensive terminology and classification. Examples of cohesive detrital deposits described and illustrated
Late Pleistocene detrital sediment yield of the Jura Glacier, France
In this study, glacial mechanical erosion is evaluated using a somewhat more reliable technique and the level of uncertainty is estimated. This paper quantifies the glacial material trapped in a proglacial lake where all the detrital material
Testing the reliability of detrital cave sediments as recorders of paleomagnetic secular variations, Seso Cave System (Central Pyrenees, Spain)
A paleomagnetic study has been carried out on a waterlaid detrital sedimentary sequence within the Seso Cave System (West-Central Pyrenees). The detrital sedimentary sequence is made of autochthonous (piping detached material from the Eocene marls
Anomalous radiocarbon ages from a Holocene detrital organic lens in Alaska and their implications for radiocarbon dating and paleoenvironmental reconstructions in the Artic
The work of CCOP/SOPAC over the past decade is described as is the growth of its functions. Survey findings relating to manganese, cobalt, a variety of sulphide and detrital minerals, phosphates, hydrocarbons, coral and gravel are presented.
Stratigraphic and petrographic study of foredeep molasse sediments, which provide a detrital record of the evolution of the southern Himalayas during the tectonic collision of central Asia and India.
Cosmogenic 21Ne analysis of individual detrital grains : opportunities and limitations
from frequency distributions of cosmogenic 21Ne concentrations in individual detrital grains. The model fully accounts for variations in nuclide production due to changes in latitude, altitude and topographic shielding and allows for spatially variable
of the mountains are the main ridge. The E-SE part is called Muntii Olăneştilor, it is made up mainly of detritic sedimentary rocks. The most interesting part is the massif called Buila-Vînturariţa. It is made of Jurassic limestone. Piatra Tîrnovului on the NE edge
This paper summarizes the dune sands layer of MGS1 stage in Milanggouwan section first, then compares it with the related chemical elements and detrital minerals of modern dune sands, and identifies the time of each layer of dune sands by the age
the quartz grain, hence silica lost through dissolution. Finally, some of the broader geomorphic implications of internal weathering are discussed, with a focus on the production of detrital quartz, the dissolution of silica, the evolution of weathering
This paper presents evidence for the occurence of detrital gold in fluvial sediments of Albian (Early Cretaceous) igneous-clast conglomerate lenses in the upper Beaver Mines and Mill Creek formations (Blairmore Group). The AA. show how this unusual
Sediments from Rapid Lake document glacial and vegetation history in the Temple Lake valley of the Wind River Range, Wyoming over the past 11,000 to 12,000 yr. Radiocarbon age determinations on basal detrital organic matter from Rapid Lake
The Dead Sea is surrounded by chemical and detrital sediments that where deposited in its larger precursor lakes, Lake Samra and Lake Lisan. The sedimentary history of these lakes was reconstructed by means of 230Th/234 U ages of 30 samples
isotope profiles and radiocarbon ages, the AA. assess the nature of soil carbonate with respect to its origin (detrital, dust, or pedogenic) and dynamic nature (closed or open to atmospheric CO2) over time.