Mauna Kea
Mauna Kea, the highest of Hawaii's five volcanoes, is the only high landmass in the central Pacific Ocean basin to bear unmistakable signs of Pleistocene glaciation. The stratigraphic record indicates that a summit ice cap formed and disappeared at least four times in the last 250,000 years, an...
Main Author: | |
---|---|
Format: | Other/Unknown Material |
Language: | unknown |
Published: |
1974
|
Subjects: | |
Online Access: | http://ntrs.nasa.gov/search.jsp?R=19740026674 |
id |
ftnasantrs:oai:casi.ntrs.nasa.gov:19740026674 |
---|---|
record_format |
openpolar |
spelling |
ftnasantrs:oai:casi.ntrs.nasa.gov:19740026674 2023-05-15T16:38:07+02:00 Mauna Kea Porter, S. C. Unclassified, Unlimited, Publicly available Aug 1, 1974 http://ntrs.nasa.gov/search.jsp?R=19740026674 unknown http://ntrs.nasa.gov/search.jsp?R=19740026674 Accession ID: 74N34787 No Copyright CASI 13 NASA. Ames Res. Center Guidebook to the Hawaiian Planetology Conf.; p 239-246 1974 ftnasantrs 2012-02-15T11:47:22Z Mauna Kea, the highest of Hawaii's five volcanoes, is the only high landmass in the central Pacific Ocean basin to bear unmistakable signs of Pleistocene glaciation. The stratigraphic record indicates that a summit ice cap formed and disappeared at least four times in the last 250,000 years, and that volcanic eruptions characterized not only the interglacial intervals, but also two of the glacial periods as well. Exposed rock units on the upper slopes of Mauna Kea have been divided into two major groups based on gross lithologic character. The Hamakua Group comprises the bulk of the subaerial shield of the volcano and consists largely of thin-bedded pahoehoe flows of olivine basalt. The overlying Laupahoehoe Group consists of a thin cap of alkalic lavas and pyroclastic layers confined largely to the upper slopes of the mountain. Interstratified with the volcanic units are sedimentary formations that provide evidence of four episodes of ice cap glaciation. Other/Unknown Material Ice cap NASA Technical Reports Server (NTRS) Pacific |
institution |
Open Polar |
collection |
NASA Technical Reports Server (NTRS) |
op_collection_id |
ftnasantrs |
language |
unknown |
topic |
13 |
spellingShingle |
13 Porter, S. C. Mauna Kea |
topic_facet |
13 |
description |
Mauna Kea, the highest of Hawaii's five volcanoes, is the only high landmass in the central Pacific Ocean basin to bear unmistakable signs of Pleistocene glaciation. The stratigraphic record indicates that a summit ice cap formed and disappeared at least four times in the last 250,000 years, and that volcanic eruptions characterized not only the interglacial intervals, but also two of the glacial periods as well. Exposed rock units on the upper slopes of Mauna Kea have been divided into two major groups based on gross lithologic character. The Hamakua Group comprises the bulk of the subaerial shield of the volcano and consists largely of thin-bedded pahoehoe flows of olivine basalt. The overlying Laupahoehoe Group consists of a thin cap of alkalic lavas and pyroclastic layers confined largely to the upper slopes of the mountain. Interstratified with the volcanic units are sedimentary formations that provide evidence of four episodes of ice cap glaciation. |
format |
Other/Unknown Material |
author |
Porter, S. C. |
author_facet |
Porter, S. C. |
author_sort |
Porter, S. C. |
title |
Mauna Kea |
title_short |
Mauna Kea |
title_full |
Mauna Kea |
title_fullStr |
Mauna Kea |
title_full_unstemmed |
Mauna Kea |
title_sort |
mauna kea |
publishDate |
1974 |
url |
http://ntrs.nasa.gov/search.jsp?R=19740026674 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Ice cap |
genre_facet |
Ice cap |
op_source |
CASI |
op_relation |
http://ntrs.nasa.gov/search.jsp?R=19740026674 Accession ID: 74N34787 |
op_rights |
No Copyright |
_version_ |
1766028419380805632 |