نتایج جستجو برای: zagros stratigraphy
تعداد نتایج: 5360 فیلتر نتایج به سال:
Radiolitid rudists belonging to the genera Bournonia FISCHER, Biradiolites D’ORBIGNY and Thyrastylon CHUBB are abundant in the Upper Maastrichtian, Titanosarcolites Limestones (Guinea Corn Formation and other formations) of Jamaica. Although there is a large literature on these Jamaican forms (e.g., WHITFIELD, 1897; TRECHMANN, 1924; CHUBB, 1956, 1967, 1971), little information on their microstr...
a Research Center of Paleontology and Stratigraphy, and Key Laboratory for Evolution of Past Life and Environment in Northeast Asia, Jilin University, Changchun, Jilin 130026, China b State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, Jiangsu 210008, China c Department of Biological Sciences, and Don Sund...
Introduction: Deciphering the stratigraphy of the Martian North Polar Layered Deposits (NPLD) may provide critical insight into climatic processes on Mars. Detailed layering is exposed within NPLD troughs, the stratigraphy of which can either simply appear straightlying or manifest in a more complex offset pattern (Fig. 1). Here we examine small-scale variations in the stratigraphy of offset tr...
The Stinking Bean Trefoil (Anagyris foetida L.) Structure in Zagros (Case Study of Gilan-e Gharb Forests)
Assessing the Plant Communities Changes by Effects of Vegetation Type, Physiography and Soil in Central Zagros Forest
Estimation of the Economic Value Soil Nutrition Protection in Zagros Forest Ecosystems (Case Study: Noujian Watershed Khoramabad)
The Anthropocene, an informal term used to signal the impact of collective human activity on biological, physical and chemical processes on the Earth system, is assessed using stratigraphic criteria. It is complex in time, space and process, and may be considered in terms of the scale, relative timing, duration and novelty of its various phenomena. The lithostratigraphic signal includes both di...
Beginning with this issue, the Journal of Paleontology will be publishing an occasional section entitled ‘‘View from the Field’’. ‘‘View from the Field’’ will provide a forum for concise commentary on current issues in paleontology, including but not limited to discussion of methods, important new discoveries, and major conceptual advances. Contributions should be brief (no more than 12 double-...
Stratigraphy is the science that studies the strata, or beds, of (mainly) sedimentary rocks in order to extract from them the history of the earth’s surface. By grouping the bed successions in stratigraphic units and by studying their geometrical relationships with some simple rules, it creates the fundamental temporal relative framework necessary to understand the origin of the rock units them...
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