Browsing by Subject "N-15/N-14"

Now showing items 1-2 of 2

ANALYSES OF NITROGEN AND ARGON IN SINGLE LUNAR GRAINS: TOWARDS A QUANTIFICATION OF THE ASTEROIDAL CONTRIBUTION TO PLANETARY SURFACES

Hashizume K.; Marty B.; Wieler R. (2002)

We performed nitrogen and argon isotopic analyses in single 200-μm-sized ilmenite grains of lunar regolith samples 71501, 79035 and 79135. Cosmogenic and trapped components were discriminated using stepwise heating with a ...
MODE OF OCCURRENCE, TEXTURAL SETTINGS AND NITROGEN-ISOTOPIC COMPOSITIONS OF IN SITU DIAMONDS AND OTHER CARBON PHASES IN THE BENCUBBIN METEORITE

Mostefaoui S.; El Goresy A.; Hoppe P.; Gillet P.; Ott U. (2002)

Investigations on a polished thin section (PTS) by reflected-light microscopy, laser micro-Raman spectroscopy, and cathodoluminescence of the Bencubbin meteorite revealed the presence of diamond grains ranging in size from ...

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