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hamada
A hamada (Arabic, حماده ''ḥammāda'') is a type of desert landscape consisting of high, largely barren, hard, rocky plateaus, with very little sand because this has been removed by deflation. ==Formation==
Hamadas are produced by the wind removing the fine products of weathering: an aeolian process known as deflation. The finer-grained products are removed in suspension, whilst the sand is removed through saltation and surface creep, leaving behind a landscape of gravel, boulders and bare rock.〔B.W. Sparks. ''Geomorphology'', 2nd ed., pp. 322-3. Longman Group Ltd. 1972. (ISBN 0-582-48147-3)〕
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「hamada」の詳細全文を読む
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