Accession Number:

ADA159997

Title:

Conditions Relevant to Atmospheric Loading of Dust.

Descriptive Note:

Interim rept. no. 1, Sep 81-Feb 82,

Corporate Author:

HEBREW UNIV JERUSALEM (ISRAEL) INST OF EARTH SCIENCES

Personal Author(s):

Report Date:

1982-02-01

Pagination or Media Count:

3.0

Abstract:

A program for the study of dust availability in desert terrains has been outlined, according to the following thematic and factorial subdivisions 1 The effect of climate. Climatic subdivision into Extremely arid, arid, mildly arid, semi-arid 2 Breakdown of desert terrains into undissected plateaus and hilltop flats hillslopes upper, middle, lower, exposed bedrock or colluvial stream channels alluvial fans upper, center, toe segments playas with their typical zonation loessial plains and valley bottoms dune fields dune and inter-dune areas 3 Lithological subdivision Igneous and metamorphic the more widespread rock types granite, syenite, diorite, quartz porphyry, basalt, gneiss, schist, amphibolite sedimentary sandstones, limestones and dolomites, chalks, shales, marls, flints, conglomerates 4 Subdivision according to age of exposure of terrain facets see 2 above -- Late Tertiary Early, Middle and Upper Pleistocene Holocene Recent. 5 Position relative to external sourser of dust -- Sahara, Arabian Desert.

Subject Categories:

  • Meteorology
  • Geology, Geochemistry and Mineralogy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE