巨头
发表于 2025-3-27 00:31:27
Desert Rock Coatingspavements cap alluvial terraces and fans. Even sand dunes are themselves composed of rock fragments exposed to the atmosphere without substantive plant cover. This chapter focuses on an irony, that the supposed fundamental bare-rock nature of desert landforms stretches the truth.
失望未来
发表于 2025-3-27 04:16:55
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machination
发表于 2025-3-27 06:50:40
Rock-Mantled Slopesof production of fine material compared to the rate of removal. The previous chapter considered hillslopes underlain by massive rocks, or those in layered rocks dominated by outcropping resistant layers. These lithologies are weathering limited, and give rise to hillslopes where a surficial layer of
GEN
发表于 2025-3-27 09:27:49
Badlands and Gullyingsity, shallow to non-existent regolith, and rapid erosion rates. Badlands appear to offer in a miniature spatialscale and a shortened temporal scale many of the processes and landforms exhibited by more normal fluvial landscapes, including a variety of slope forms, bedrock or alluvium-floored rills
FORGO
发表于 2025-3-27 15:05:04
Catchment and Channel Hydrologythat exist; secondly, as a chemical substance which interacts with other chemical substances, notably salts; third, as a medium of transport of mass; and, fourth, as a direct source of energy. The last role, though small by comparison with the roles of solar and wind energy, may none the less be cri
G-spot
发表于 2025-3-27 20:05:20
Dryland Rivers: Processes and Formsatically with the low sediment loads and languid flows of their lowland counterparts while from a form perspective, the unstable wide, shallow and sandy braid plains of piedmont rivers are quite different from the relatively stable, narrow, deep and muddy channels of anastomosing systems (Nanson et
probate
发表于 2025-3-28 01:01:05
Pediments in Arid Environmentsings. Reported on six continents, their distribution spans the range of subpolar latitudes from the Arctic to the Antarctic and the range of climate from hyperarid to humid tropical (Whitaker 1979). On the Cape York Peninsula in tropical north-east Queensland, a tectonically quiescent region of Prec
积习难改
发表于 2025-3-28 02:10:02
Processes and Forms of Alluvial Fans 14.1 and 14.2). Although present in perhaps all global climates, fans in deserts have been the most studied due to their excellent exposure and ease of access. Drew (1873), working in the upper reaches of the Indus River valley in the western Himalaya of India, provided the earliest illustrations a
哎呦
发表于 2025-3-28 08:12:14
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钻孔
发表于 2025-3-28 13:22:40
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