نتایج جستجو برای: chronostratigraphy
تعداد نتایج: 210 فیلتر نتایج به سال:
The subject of the study is interdisciplinary terminology toponymy. purpose work to define and describe new terms that can be used in toponymic multi-scientific research on toponymy conducted by linguists, geographers historians. glossary formed sampling them from latest works analyzing their semantics original scientific field use (geography, archeology), then Particular attention paid have a ...
The Patagonian Icefields are among the highest latitude and most sensitive icefields in the Southern Hemisphere, and are responding sensitively to climate. Their response to rapid climate changes during the Last Termination and during Holocene palaeoclimatic fluctuations has the potential to elucidate changes in large scale atmospheric circulation as well as aid better predictions of their futu...
Fringing reefs are generally not simple veneers of coral growth along tropical shorelines. Extensive research over the past few decades, based on radiocarbon dating of Holocene reef deposits, has indicated that they can develop in a complex variety of ways even though the surface morphology may appear relatively simple. The principal factor that appears to determine the growth and morphology of...
Global synchronization of environmental change in terrestrial successions deep time is challenging owing to the paucity dating methods, a case also applicable Middle Upper Triassic Mercia Mudstone Group Britain. Using coastal cliff sections, magnetostratigraphy was evaluated at 263 horizons, defining 53 magnetozones. Magnetozones from lower 140 m group demonstrate correspondence those mid-Ladin...
The synrift sandstone deposits of Eo-Oligocene Lemat (LMF) and Oligo-Miocene Talang Akar Formations (TAF) are the most well -known hydrocarbon reservoirs in South Sumatra Basin, Indonesia. However, only limited studies on TAF North Palembang Sub-Basin have been published. In Ridho field, is characterized by fining-up sequences inter bedded, fine to medium-grained sandstones shales overlain a co...
The Ventersdorp Contact Reef (VCR) at the base of >4.5 km-thick volcanosedimentary Supergroup unconformably overlies Witwatersrand and is second youngest mineable reef in Goldfields. volcanic rocks are predominantly mafic, affected by low-grade thermal metamorphism difficult to date. Only Makwassie Formation upper Platberg Group main repository has been reliably dated on four felsic samples 272...
Abstract The Permian marine-terrestrial system of the North China block provides an exceptional window into evolution northern temperate ecosystems during critical transition from icehouse to greenhouse following late Paleozoic ice age (LPIA). Despite many studies on its rich hydrocarbon reserves and climate-sensitive fossil flora, uncertain temporal constraints correlations have hampered a tho...
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