The geomorphologic features of snow block avalanche in Mt. Asakusa / Tatsuo Sekiguchi, Hideaki Marui, Kazuya Akiyama.

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035 ## ‡aSPRI-169429
040 ## ‡aUkCU-P‡beng‡eaacr
041 0# ‡ajpn
100 1# ‡aSekiguchi, Tatsuo.
245 10 ‡aThe geomorphologic features of snow block avalanche in Mt. Asakusa /‡cTatsuo Sekiguchi, Hideaki Marui, Kazuya Akiyama.
260 ## ‡a[S.l.] :‡b[s.n.],‡c2003.
300 ## ‡ap. 377-387 :‡bill., diags., tables, maps.
500 ## ‡aSeppyo : Journal of the Japanese Society of Snow and Ice. Vol. 65(4) :377-387 (2003).
500 ## ‡aEnglish abstract.
520 3# ‡aDiscusses snow block avalanches in area of Mt. Asakusa, Niigata Prefecture where one event killed four in 2000. Photographically identifies many local slopes with potential for or history of snow block avalanches. Starting mostly at knick line, these have slopes from 30 to 42 degrees and run-outs from 90 to 350 metres, values similar to those of past full-depth and surface layer avalanches. Reports many cracks and overhanging features on remaining snow surfaces, mostly at knick line and on high risk slopes. From geomorphological evidence such as avalanche furrows, and presence of eroded deposits in snow debris, suggests following scenario: 1) snow fall and accumulation; 2) (melting and) gliding of remaining snow and crack formation; 3) full-depth snow avalanche; 4) snow block avalanche. Concludes snow block avalanches play significant geomorphological role.
546 ## ‡aIn Japanese.
650 07 ‡a551.32 -- Glaciology.‡2udc
650 07 ‡a551.4 -- Geomorphology.‡2udc
650 07 ‡a551.578.46 -- Snow cover and snow patches.‡2udc
650 07 ‡a551.578.48 -- Avalanches.‡2udc
650 07 ‡a551.578.482 -- Avalanches. Theory, causes.‡2udc
650 07 ‡a551.578.486 -- Avalanches, particular disasters.‡2udc
650 07 ‡a551.578.465 -- Snow cover, stratification.‡2udc
650 07 ‡a551.578.463 -- Snow cover, firnification.‡2udc
650 07 ‡a624.144 -- Damage caused by snow and ice.‡2udc
650 07 ‡a551.435.624 -- Avalanche tracks.‡2udc
650 07 ‡aE10 -- Glaciology: snow and avalanches.‡2local
651 #7 ‡a(520) -- Japan.‡2udc
700 1# ‡aMarui, Hideaki.
700 1# ‡aAkiyama, Kazuya.
773 0# ‡7nnas ‡tSeppyo : Journal of the Japanese Society of Snow and Ice. ‡gVol. 65(4) (2003) ‡wSPRI-17791
916 ## ‡aRF
917 ## ‡aUnenhanced record from Muscat, imported 2019
948 3# ‡a20240419 ‡bRF