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Chemistry of orange/black soils from core 74001/2Double core 74001/2 soils were studied. Bulk soils and the 90-150 micrometer and less than 20 micrometer size fractions of 13 soils from the core for both major and trace elements by instrumental neutron activation analysis were analyzed. The orange and black glassy soils in the core 74001/2 are homogeneous in composition and due to their unusual compositional characteristics probably have derived from a single source with the same composition. The top of the core has been reworked to a depth of about 5 cm. The reworked layer is marked by compositional differences in the first 3 cm which reflect the addition (at least 10%) of materials including mare basalt and a CaO-rich component. The maturity profile (I sub s/FeO) clearly indicates reworking depth of about 5 cm. It is likely that at least some of the ferro-magnetically active component (including agglutinitic glass) has been 'inherited' with the added material.
Document ID
19790055195
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Blanchard, D. P.
(NASA Johnson Space Center Houston, Tex., United States)
Budahn, J. R.
(Lockheed Electronics Co., Inc. Houston, Tex., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1978
Subject Category
Lunar And Planetary Exploration
Meeting Information
Meeting: Lunar and Planetary Science Conference
Location: Houston, TX
Start Date: March 13, 1978
End Date: March 17, 1978
Accession Number
79A39208
Distribution Limits
Public
Copyright
Other

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