نتایج جستجو برای: seismic stratigraphy
تعداد نتایج: 40487 فیلتر نتایج به سال:
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...
Xuande Atoll is an isolated carbonate platform that has developed since the early Miocene. This study conducted high-resolution seismic surveys and shallow drilling to understand its internal structure development. Five sequences were observed (from bottom top): SQ1 (early Miocene), SQ2 (middle SQ3 (late SQ4 (Pliocene), SQ5 (Quaternary). The data indicated formation started in Miocene flourishe...
Abstract This work analyses six high-resolution multi-channel seismic profiles across the Klints Bank east of Gotland. The consists a drop-shaped increase Quaternary thickness and is oriented in an approximately north-southern direction with length over 50 km, width about 15 km maximum 150 m. glacial origin can be verified dataset presented this study. We classify feature as (giant) drumlin due...
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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