نتایج جستجو برای: zagros stratigraphy
تعداد نتایج: 5360 فیلتر نتایج به سال:
8 Lophotidae, or crestfishes, is a family of rare deep-sea teleosts characterised by an enlarged 9 horn-like crest on their forehead. They are poorly represented in the fossil record, by only 10 three described taxa. One specimen attributed to Lophotidae has been described from the 11 pelagic fauna of the middle-late Eocene Zagros Basin, Iran. Originally considered as a 12 specimen of the fossi...
The Kura-Araxes cultural tradition existed in the highlands of the South Caucasus from 3500 to 2450 BCE (before the Christian era). This tradition represented an adaptive regime and a symbolically encoded common identity spread over a broad area of patchy mountain environments. By 3000 BCE, groups bearing this identity had migrated southwest across a wide area from the Taurus Mountains down int...
[1] A high-resolution stratigraphic image of a flume-generated deposit was scaled up to sedimentary basin dimensions where a natural log hydraulic conductivity (ln(K)) was assigned to each pixel on the basis of gray scale and conductivity end-members. The synthetic ln(K) map has mean, variance, and frequency distributions that are comparable to a natural alluvial fan deposit. A geostatistical a...
Fluvial and coastal environment (1) HydroTrend3.0: a climate-driven hydrological transport model that simulates discharge and sediment load leaving a river system: A.J. Kettner (Delft U. Technology) and J.P.M. Syvitski (INSTAAR) (2) Geolocation of man-made reservoirs across terrains of varying complexity using GIS. D.M. Mixon (INSTAAR), D.A. Kinner (Western Carolina U.), R.F. Stallard USGS), an...
A hierarchical geostatistical analysis is conducted on a high-resolution, multiscale hydraulic conductivity (lnK) map, created by scaling up an experimental stratigraphy. Unlike a previous study which evaluates lnK variograms within individual depositional environments, this study analyzes deposits (or samples) that incorporate multiple depositional environments. Based on conductivity cutoffs s...
A high-resolution age–depth profile is presented for a 16-m deep-sea piston core (EW9709-PC07) using three different methods: magnetostratigraphy, fish-teeth strontium isotope stratigraphy, and radiolarian biostratigraphy. Fish teeth are abundant throughout the core, allowing for precise age determinations by Sr isotope stratigraphy. Magnetostratigraphic ages, though not available for this core...
Revised Tertiary Stratigraphy and Paleontology of the Western Beaver Divide, Fremont County, Wyoming
Emry, Robert J. Revised Tertiary Stratigraphy and Paleontology of the Western Beaver Divide, Fremont County, Wyoming. Smithsonian Contributions to Paleobiology, number 25, 20 pages, 6 figures, 1975.•In the western Beaver Divide area in west-central Wyoming, a lens of coarse Tertiary volcanic conglomerate and tuff disconfqrmably overlies Uintan rocks of the Wagon Bed Formation. The coarse volcan...
In this contribution preliminary studies on the application of Optical Coherence Tomography (OCT) to absolute depth calibration of Laser Induced Breakdown Spectroscopy (LIBS) data in application to revealing stratigraphy of easel paintings are presented. The procedure of in-situ monitoring of LIBS by means of OCT is described. Numerical method developed for precise extraction of the depth of th...
1 Faculty of Geosciences, Utrecht University, Utrecht, The Netherlands. E-mail: [email protected] 2 Department of Geological Sciences, California State University, Long Beach CA, USA. E-mail: [email protected] 3 Cambridge Quaternary, University of Cambridge, Cambridge, England, UK. E-mail: [email protected] 4 State Key Laboratory of Palaeobiology & Stratigraphy, Nanjing Institute of Geology & Pa...
1 Institute of Earth Sciences Jaume Almera Consejo Superior de Investigaciones Científicas (ICTJA-CSIC), Barcelona, Spain, 2 Department of Prehistory, Ancient History and Archaeology, Universitat de Barcelona, Barcelona, Spain, 3 Ecological Research Center and Forestry Applications (CREAF-CSIC), Cerdanyola del Vallès, Spain, 4 Department of Stratigraphy, Paleontology and Marine Geosciences, Uni...
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