Accession Number:

ADA022676

Title:

Mid-Infrared Spectral Behavior of Metamorphic Rocks.

Descriptive Note:

Environmental research papers,

Corporate Author:

AIR FORCE CAMBRIDGE RESEARCH LABS HANSCOM AFB MASS

Personal Author(s):

Report Date:

1976-01-06

Pagination or Media Count:

66.0

Abstract:

Mid-infrared 6 to 40 micrometers spectra of metamorphic rocks and rock-forming minerals are presented, and their molecular vibration bands identified. While igneous and sedimentary rocks are typically composed of a few major rockforming minerals in different proportions, metamorphic rocks may contain many different mineral components, some of which are vertually unique to the metamorphic environment. As a result, metamorphic rocks display a great range in spectral behavior. However, similar metamorphic facies exhibit similar spectral behavior, and this behavior is readily understandable in terms of rock mineralogy. This understanding is aided by the fact that metamorphic recrystallization is usually accompanied by a sharpening of the spectral features.

Subject Categories:

  • Geology, Geochemistry and Mineralogy
  • Test Facilities, Equipment and Methods
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE