Tab. 1: Proportion of glacial quartz grains contained in the deposits
The Yari-Hotaka Mountain Range is one of the most famous formerly-glaciated areas of Japan. Many glacial landforms remain in three neighbouring U-shaped valleys, named Yarisawa, Yokoo and Migimata. Moraines and outwash terraces can be classified into four groups according to their location and to th...
Main Authors: | , |
---|---|
Format: | Dataset |
Language: | English |
Published: |
PANGAEA
1983
|
Subjects: | |
Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.746060 https://doi.org/10.1594/PANGAEA.746060 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.746060 |
---|---|
record_format |
openpolar |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.746060 2023-05-15T18:02:52+02:00 Tab. 1: Proportion of glacial quartz grains contained in the deposits Ito, M Vorndran, G LATITUDE: 36.340000 * LONGITUDE: 137.650000 * MINIMUM ELEVATION: 1680 m a.s.l. * MAXIMUM ELEVATION: 2850 m a.s.l. 1983-10-08 text/tab-separated-values, 94 data points https://doi.pangaea.de/10.1594/PANGAEA.746060 https://doi.org/10.1594/PANGAEA.746060 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.746060 https://doi.org/10.1594/PANGAEA.746060 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Ito, M; Vorndran, G (1983): Glacial Geomorphology and Snow-Lines of Younger Quaternary around the Yari-Hotaka Mountain Range, Northern Alps, Central Japan. Polarforschung, 53(1), 75-89, hdl:10013/epic.29529.d001 Area/locality Counting ELEVATION Geological sample GEOS Grains counted/analyzed Japan Mountain Range Name Sand Scanning electron microscope (SEM) Site Yari-Hotaka Dataset 1983 ftpangaea https://doi.org/10.1594/PANGAEA.746060 2023-01-20T08:51:30Z The Yari-Hotaka Mountain Range is one of the most famous formerly-glaciated areas of Japan. Many glacial landforms remain in three neighbouring U-shaped valleys, named Yarisawa, Yokoo and Migimata. Moraines and outwash terraces can be classified into four groups according to their location and to the amount of glacial quartz grains contained in the deposits. A glaciation is proved for other parts of the Northern Japanese Alps before 100 000 years B.P., but not for the Yari-Hotaka Mountain Range, because the corresponding glacial landforms cannot be found here. The oldest known Ichinomata stage before and after 60 000 years B.P. corresponds to the Yokoo glacial which is proved wirhin the whole Japanese Alps. The three younger stages, Babadaira stage (before 30 000 years B.P.), Yarisawa stage I (about 30000 years B.P.) and Yarisawa stage II (about 15000 years B.P.), belong to the Karasawa glacial. About 10 000 years B.P. the glaciers melted away. At all times the relief-influence was especially important for Ihe mass-balances of Japanese glaciers. Wind-drifted snow from the west-exposed windward slopes to the slopes in eastern (lee) exposition, and a voluminous snow accumulation by avalanches from the high rocky walls onto the glacier surfaces beneath, caused very low situated glaciers as well as low equilibrium-lines. In most cases the snow-lines were situated 100 m or more above the equilibrium-lines. During the Ichinomata stage the snow-line reached an altitude of 2400-2450 m. It rose about 100 m to the Babadaira stage, 300 m to Yarisawa stage I and about 450 m to Yarisawa stage II. At present the snow-line is situated above the Northern Japanese Alps at over 4000 m. Therefore only perennial snow-patches exist. If the snow-line would go down by a few hundred meters, this region would be highly interesting Ifor studies on the beginning of mountain glaciation. Dataset Polarforschung PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(137.650000,137.650000,36.340000,36.340000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Area/locality Counting ELEVATION Geological sample GEOS Grains counted/analyzed Japan Mountain Range Name Sand Scanning electron microscope (SEM) Site Yari-Hotaka |
spellingShingle |
Area/locality Counting ELEVATION Geological sample GEOS Grains counted/analyzed Japan Mountain Range Name Sand Scanning electron microscope (SEM) Site Yari-Hotaka Ito, M Vorndran, G Tab. 1: Proportion of glacial quartz grains contained in the deposits |
topic_facet |
Area/locality Counting ELEVATION Geological sample GEOS Grains counted/analyzed Japan Mountain Range Name Sand Scanning electron microscope (SEM) Site Yari-Hotaka |
description |
The Yari-Hotaka Mountain Range is one of the most famous formerly-glaciated areas of Japan. Many glacial landforms remain in three neighbouring U-shaped valleys, named Yarisawa, Yokoo and Migimata. Moraines and outwash terraces can be classified into four groups according to their location and to the amount of glacial quartz grains contained in the deposits. A glaciation is proved for other parts of the Northern Japanese Alps before 100 000 years B.P., but not for the Yari-Hotaka Mountain Range, because the corresponding glacial landforms cannot be found here. The oldest known Ichinomata stage before and after 60 000 years B.P. corresponds to the Yokoo glacial which is proved wirhin the whole Japanese Alps. The three younger stages, Babadaira stage (before 30 000 years B.P.), Yarisawa stage I (about 30000 years B.P.) and Yarisawa stage II (about 15000 years B.P.), belong to the Karasawa glacial. About 10 000 years B.P. the glaciers melted away. At all times the relief-influence was especially important for Ihe mass-balances of Japanese glaciers. Wind-drifted snow from the west-exposed windward slopes to the slopes in eastern (lee) exposition, and a voluminous snow accumulation by avalanches from the high rocky walls onto the glacier surfaces beneath, caused very low situated glaciers as well as low equilibrium-lines. In most cases the snow-lines were situated 100 m or more above the equilibrium-lines. During the Ichinomata stage the snow-line reached an altitude of 2400-2450 m. It rose about 100 m to the Babadaira stage, 300 m to Yarisawa stage I and about 450 m to Yarisawa stage II. At present the snow-line is situated above the Northern Japanese Alps at over 4000 m. Therefore only perennial snow-patches exist. If the snow-line would go down by a few hundred meters, this region would be highly interesting Ifor studies on the beginning of mountain glaciation. |
format |
Dataset |
author |
Ito, M Vorndran, G |
author_facet |
Ito, M Vorndran, G |
author_sort |
Ito, M |
title |
Tab. 1: Proportion of glacial quartz grains contained in the deposits |
title_short |
Tab. 1: Proportion of glacial quartz grains contained in the deposits |
title_full |
Tab. 1: Proportion of glacial quartz grains contained in the deposits |
title_fullStr |
Tab. 1: Proportion of glacial quartz grains contained in the deposits |
title_full_unstemmed |
Tab. 1: Proportion of glacial quartz grains contained in the deposits |
title_sort |
tab. 1: proportion of glacial quartz grains contained in the deposits |
publisher |
PANGAEA |
publishDate |
1983 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.746060 https://doi.org/10.1594/PANGAEA.746060 |
op_coverage |
LATITUDE: 36.340000 * LONGITUDE: 137.650000 * MINIMUM ELEVATION: 1680 m a.s.l. * MAXIMUM ELEVATION: 2850 m a.s.l. |
long_lat |
ENVELOPE(137.650000,137.650000,36.340000,36.340000) |
genre |
Polarforschung |
genre_facet |
Polarforschung |
op_source |
Supplement to: Ito, M; Vorndran, G (1983): Glacial Geomorphology and Snow-Lines of Younger Quaternary around the Yari-Hotaka Mountain Range, Northern Alps, Central Japan. Polarforschung, 53(1), 75-89, hdl:10013/epic.29529.d001 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.746060 https://doi.org/10.1594/PANGAEA.746060 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.746060 |
_version_ |
1766173555734609920 |