Raman spectrometry is a rapid, non-destructive alternative to conventional tools employed
to assess the thermal alteration of organic matter (OM). Raman may be used to determine …

All chondrites accreted∼ 3.5 wt.% C in their matrices, the bulk of which was in a
macromolecular solvent and acid insoluble organic material (IOM). Similar material to IOM is …

The Lutetium–Hafnium radiogenic isotopic system is widely used as a chronometer and
tracer of planetary evolution. In order for this isotopic system to fulfill its potential in planetary …

Organic compounds, which on Earth originate mainly through biological activity, are
transformed under the physical conditions of Earth's crust, with the end product being …

We have analyzed the chemically and isotopically well‐characterized insoluble organic
matter (IOM) extracted from 51 unequilibrated chondrites (8 CR, 9 CM, 1 CI, 3 ungrouped C …

A unique spectroscopic feature has been identified in a study of twenty-five different samples
of meteoritic insoluble organic matter (IOM) spanning multiple chemical classes, groups, and …

Astronomical observations and isotopic measurements of meteorites suggest that
substructures are common in protoplanetary disks and may even have existed in the solar …

Although the literature on the Raman spectra of carbon fibers is vast, no consistent, robust
predictive relationship between mechanical properties of carbon fibers and spectral …

A quantitative understanding of the elemental and isotopic fractionations recorded in the
compositions of the chondritic meteorites would provide fundamental constraints for …

Here we report the elemental and isotopic compositions of the insoluble organic material
(IOM) isolated from several previously unanalyzed meteorites, as well as the reanalyses of H …