Trace-element composition of Chicxulub crater melt rock, K/T tektites and Yucatan basement

Details Trace-element composition of Chicxulub crater melt rock, K/T tektites and Yucatan basement Trace-element composition of Chicxulub crater melt rock, K/T tektites and Yucatan basement

Mar 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993lpi....24..657h&link_type=abstract

In Lunar and Planetary Inst., Twenty-Fourth Lunar and Planetary Science Conference. Part 2: G-M p 657-658 (SEE N94-16173 03-91)

Physics

1

Cretaceous-Tertiary Boundary, Ejecta, Glass, Lithology, Meteorite Craters, Planetary Craters, Rocks, Tektites, Trace Elements, Mass Spectroscopy, Microanalysis, Neutron Activation Analysis, Plasmas (Physics), Radiochemistry, Silicates

Scientific paper

The Cretaceous/Tertiary (K/T) boundary Chicxulub impact is the best preserved large impact in the geologic record. The Chicxulub crater has been buried with no apparent erosion of its intracrater deposits, and its ejecta blanket is known and is well preserved at hundreds of localities globally. Although most of the molten material ejected from the crater has been largely altered, a few localities still preserve tektite glass. Availability of intra- and extracrater impact products as well as plausible matches to the targeted rocks allows the comparison of compositions of the different classes of impact products to those of the impacted lithologies. Determination of trace-element compositions of the K/T tektites, Chicxulub melt rock, and the targeted Yucatan silicate basement and carbonate/evaporite lithologies have been made using instrumental neutron activation analysis (INAA) and inductively coupled plasma mass spectrometry (ICP-MS). Some sample splits were studied with both techniques to ensure that inter-laboratory variation was not significant or could be corrected. The concentration of a few major and minor elements was also checked against microprobe results. Radiochemical neutron activation analysis (RNAA) was used to determine Ir abundances in some samples.

Affiliated with

Also associated with

No associations

Rating

Trace-element composition of Chicxulub crater melt rock, K/T tektites and Yucatan basement does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Trace-element composition of Chicxulub crater melt rock, K/T tektites and Yucatan basement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Trace-element composition of Chicxulub crater melt rock, K/T tektites and Yucatan basement will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1449044