My Research and Expertise
My major research interest includes the study of
the geographical
distribution, physical properties, composition, petrography, age, and
origin of tektites and microtektites. I am also interested in the possible
correlation of major impacts (particularly tektite events) with climatic
changes, extinctions, and geomagnetic reversals as recorded in deep-sea
sediments. I have a general interest in deep sea sedimentation and
Cenozoic stratigraphy. I am also interested in impact catering and shock
metamorphism. I spent 5 years studying lunar glasses (from both Apollo and
Union of Soviet Socialist Republics (USSR) samples). Earlier studies
involved magnetostratigraphy and Pleistocene stratigraphy of deep-sea
sediments. Present studies include the investigation of impact ejecta
associated with both the Australian and North American microtektite layers
and the search for the source crater for these two events. Future
research will involve the number, geographic extent, and identification of
source craters for upper Eocene spherule layers in marine sediments.
Another goal is to define new distal impact ejecta varies with distance
from the source crater.
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