Earth-Surface Processes and Alluvial-Fan Formation in East Asia
نویسندگان
چکیده
منابع مشابه
Late alluvial fan formation in southern Margaritifer Terra, Mars
[1] Crater statistics indicate alluvial fans, crater floor, and fill/mantling deposits within impact craters >50 km in diameter in southern Margaritifer Terra were likely emplaced during multiple epochs: fans formed during the Amazonian or near the Amazonian‐Hesperian boundary, crater floor deposits are likely Hesperian in age, and most fill/mantling deposits are Amazonian. The regional distrib...
متن کاملkurdish diaspora in central asia and caoucasus
در طول دو قرن گذشته و ظهور روسیه بعنوان قدرتی بزرگ در عرصه جهانی و شروع رقابت با سایر قدرت های بین المللی و منطقهای خصوصا با ایران و عثمانی این ئکشور تلاش کرده است تاد از جمعیت کردها در این کشورها در راستای منافع خود بهره برداری کند در قرون 18 و 19 بارها بخشی از کردها برعلیه امپراطوری عثمانی توسط این کشور مورد استفاده قرار گرفت خصوصا در جنگ های سال 1790تا 1798. این ججنگ ها م.جب شد که بخشی از کر...
15 صفحه اولControls on alluvial fan long - profi les
Water and debris fl ows exiting confi ned valleys have a tendency to deposit sediment on steep fans. On alluvial fans where water transport of gravel predominates, channel slopes tend to decrease downfan from ~0.10–0.04 to ~0.01 across wide ranges of climate and tectonism. Some have argued that this pattern refl ects grain-size fi ning downfan such that higher threshold slopes are required just...
متن کاملThe Role of Climatic Change in Alluvial Fan Development
Alluvial fans develop at the base of drainages where feeder channels release their solid load (Blair and McPherson, 2009; Leeder et al., 1998; Harvey et al., 2005). A classic fan-shape forms where there is a well-defined topographic apex. Multiple feeder channels, however, often blur the fan-shape resulting in a merged bajada. Alluvial fans can be found in almost all terrestrial settings. These...
متن کاملCharacterisation of the surface morphology of an alpine alluvial fan using airborne LiDAR
Alluvial fans of alpine torrents are both natural deposition areas for sediment discharged by floods and debris flows, and preferred sites for agriculture and settlements. Hazard assessment on alluvial fans depends on proper identification of flow processes and their potential intensity. This study used LiDAR data to examine the morphology of the alluvial fan of a small alpine stream (Moscardo ...
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ژورنال
عنوان ژورنال: TRENDS IN THE SCIENCES
سال: 2010
ISSN: 1884-7080,1342-3363
DOI: 10.5363/tits.15.2_18