Late quaternary moraines of the Ngojumba Glacier, Khumbu Himal, Eastern Nepal

Shinji NAGAOKA, Hideaki MAEMOKU, Yoshio TANAKA
1990 Journal of Geography (Chigaku Zasshi)  
Late Quaternary glacier variation of the Ngojumba Glacier in the Khumbu Himal are determined by detailed field mapping of glacial landforms, stratigraphy of fossil soil, S-1, S-2, and S-3 in desending order, and 14C-dates of fossil soil horizon. The moraines of different ages indicate seven advance stages as follows ; the Gokyo stage, the Nah stage, the Machhermo stage, the Dole stage, the Phortse Drangka stage, the Phortse stage, and the Konar stage. The Gokyo and Nah stages, of which moraines
more » ... , of which moraines are covered with very thin S-1 soil correspond to the period from the Little Ice Age of A.D. 19-16c. to the middle Neoglacial readvance. Since the moraines of the Machhermo stage are covered with S-2 soil of 600-5,000 y. B. P. by 14C-dating, were probably formed during early Neoglaciation, 7-8 ka. The moraines, overlain by S-3 soil, of the
doi:10.5026/jgeography.99.3_270 fatcat:vhochwx325ebhcy6efyufz46g4