MINERAL PARTICLES FROM ASIA FOUND IN VOLCANIC LOESS ON THE ISLAND OF HAWAII

被引：9

作者：

BEGET, JE

KESKINEN, M

SEVERIN, K

机构：

[1] Department of Geology and Geophysics, University of Alaska, Fairbanks

来源：

SEDIMENTARY GEOLOGY | 1993年 / 84卷 / 1-4期

关键词：

D O I：

10.1016/0037-0738(93)90055-A

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

X-ray diffraction studies of bulk samples, energy-dispersive analyses of single mineral grains, and X-ray mapping of particles in grain mounts show that quartz grains are present in late Quaternary tephric loess deposits of the Pahala Formation found at Pu'u o Mahana near Ka Lae (South Point) on the island of Hawaii. These particles are as large as 40-60 mum, and make up as much as 1-3% of the deposit. Quartz is virtually unknown in the basalts of the Hawaiian Islands, so these particles were evidently transported more than 10,000 km from Asia by late Quaternary wind storms.

引用

页码：189 / 197

页数：9

共 34 条

[1]

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[2]

BARRATT BC, 1988, LOESS, P7

[3]

BEGET JE, 1990, GEOLOGY, V18, P40, DOI 10.1130/0091-7613(1990)018<0040:PFOMSV>2.3.CO

[4]

[5] INFLUENCE OF ORBITAL PARAMETERS ON PLEISTOCENE LOESS DEPOSITION IN CENTRAL ALASKA [J].