نتایج جستجو برای: zagros stratigraphy

تعداد نتایج: 5360  

2007
BENJAMIN F. ZAITCHIK JASON P. EVANS ROLAND A. GEERKEN RONALD B. SMITH

The Euphrates Plain (EP) experiences large interannual variability in vegetation cover, especially in areas of marginal rain-fed agriculture. Vegetation in this region is primarily limited by available soil moisture, as determined by winter precipitation, spring precipitation, and air temperature. Satellite analyses indicate that the springtime normalized difference vegetation index (NDVI) is n...

2012
D. Garcia-Castellanos

The aim of this work is to propose a first-order estimate of the crustal and lithospheric mantle geometry of the Arabia–Eurasia collision zone and to separate the measured Bouguer anomaly into its regional and local components. The crustal and lithospheric mantle structure is calculated from the geoid height and elevation data combined with thermal analysis. Our results show that Moho depth var...

Journal: :Archaeological and Anthropological Sciences 2022

Abstract The Zagros Mountains represent a strategic geographic region near the junction of Africa, Europe, and Asia, valleys within mountain range likely correspond to migration corridors used by archaic modern humans. Ghar-e Boof, key archeological site in southern Zagros, is located at an altitude 905 m.a.s.l. Dasht-e Rostam Fars Province, Iran. On basis lithic artifacts radiocarbon luminesce...

2011

Quantified balanced and restored crustal cross-sections across the NW Zagros Mountains are presented in this work integrating geological and geophysical local and global datasets. The balanced crustal cross-section reproduces the surficial folding and thrusting of the thick cover succession, including the near top of the Sarvak Formation (∼ 90 Ma) that forms the top of the restored crustal cros...

Journal: :Science 2016
Farnaz Broushaki Mark G Thomas Vivian Link Saioa López Lucy van Dorp Karola Kirsanow Zuzana Hofmanová Yoan Diekmann Lara M Cassidy David Díez-Del-Molino Athanasios Kousathanas Christian Sell Harry K Robson Rui Martiniano Jens Blöcher Amelie Scheu Susanne Kreutzer Ruth Bollongino Dean Bobo Hossein Davudi Olivia Munoz Mathias Currat Kamyar Abdi Fereidoun Biglari Oliver E Craig Daniel G Bradley Stephen Shennan Krishna Veeramah Marjan Mashkour Daniel Wegmann Garrett Hellenthal Joachim Burger

We sequenced Early Neolithic genomes from the Zagros region of Iran (eastern Fertile Crescent), where some of the earliest evidence for farming is found, and identify a previously uncharacterized population that is neither ancestral to the first European farmers nor has contributed substantially to the ancestry of modern Europeans. These people are estimated to have separated from Early Neolith...

Journal: :Journal Of Geophysical Research: Solid Earth 2022

We use interferometric synthetic aperture radar observations to investigate the fault geometry and afterslip evolution within 3 years after a mainshock. The postseismic favor ramp-flat structure in which flat angle should be lower than 10°. deformation is dominated by afterslip, while viscoelastic response negligible. A multisegment, stress-driven model (hereafter called SA-2 model) with depth-...

2004
Nadine McQuarrie

Balanced cross-sections across the Zagros fold–thrust belt in Iran are used to analyze the geometry of deformation within the sedimentary cover rocks, and to test the hypothesis of basement involved thrusting throughout the fold–thrust belt. Although the Zagros deformation front is a relatively rectilinear feature, the sinuous map-view morphology of the mountain front is a result of a 6 km stru...

2010
Michael S. Steckler

The goal of the Stratigraphy project of the STRATAFORM program is to understand the creation of the preserved stratigraphic record on continental shelves and slopes as the product of physical processes acting with spatial and temporal heterogeneities. I am using numerical models to provide insight into the formation and preservation of stratigraphic sequences at margins. My goal is to obtain a ...

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