|
Kaustubh Patwardhan VISITING ASSISTANT
PROFESSOR Department of Geology Bucknell University Office: O’Leary 226 Phone: 570-577-2610 Email: kp014 at Bucknell.edu |
|
Education:
Ph.D. Earth & Planetary
Sciences, Johns Hopkins University, Baltimore, Maryland
M.Sc. Geology, Pune University, Pune, India
B.Sc. Geology, St. Xavier’s
College, Mumbai University, Mumbai, India
Teaching:
Spring
2012: I
will be teaching Geology 104: Evolution
of the Earth and Geology 103: Dynamic Earth I have greatly enjoyed teaching these
courses in previous semesters and I am looking forward to the field labs this
semester!
For
the Geology 104 Fall 2011 schedule, click here.
Research & Publications:
Patwardhan, K. and Marsh, B. D., (2011), Dynamics of the
development of the Isle au Haut gabbro-diorite layered complex: Quantitative
implications for mafic-silicic magma interactions. Journal of Petrology, Volume 52(12),
doi:10.1093/petrology/egr049.
Click here for
the abstract.
Patwardhan,
K. and Marsh, B. D., (2010), Understanding
the dynamics of mafic-silicic magma interactions in the Isle au Haut Igneous
Complex, Maine. Geological Society of
America Abstracts with Programs, Vol. 42, No. 5, Paper No. 277-3. Click here for
the abstract.
My
research in igneous petrology focuses on the physical and chemical aspects of
magma evolution and integrates fieldwork, laboratory analytical techniques, and
modeling. Systematic field mapping, sampling, and observations form the
foundation and are followed by chemical, petrographic,
and crystal size distributions analyses. Field and analytical data are then
used to model phase equilibria and relevant, critical
processes such as solidification, compaction, and melt segregation.
This
summer I began a new project on the interaction of mafic-silicic magmas in the
Pleasant Bay Intrusion, Maine. This project is focused on testing the results
obtained from my graduate research work on the nearby Isle au Haut Igneous
Complex, Maine. Jon Algeo ’13,
joined me for the field work on Pleasant Bay where we conducted detailed
mapping of the fascinating field relationships (see pictures below) between
these rocks and collected rock samples for chemical and petrographic
analysis. Evidence of interaction between magmas of contrasting composition is
often observed in volcanic eruptions along subduction zones (e.g. Mt. Fuji)
but, information about the spatial context and timescales of these interactions
are lost in the destructive nature of the eruption itself. The Pleasant Bay and
Isle au Haut plutons formed underneath such volcanoes ~ 420 million years ago
during the Acadian orogeny and have preserved the detailed nature of
mafic-silicic magma interaction making them invaluable in the study of
subduction zone magmatism.
|
Vertical
section of silicic pipes emanating from a thin layer and intruding overlying
gabbro. |
Chilled
gabbro blobs separated by a matrix of silicic melt. |
|
3D
exposure of evenly spaced silicic pipes intruding gabbro. |
Silicic
pipes in horizontal cross-section. |
Photography, Music, and other
distractions!
Outside
the classroom and lab you may find me engaged in taking pictures, looking for
fossils, playing banjo or guitar with friends, hiking, biking, or bird watching.
You
can check out my pictures from our Spring Break trips to Arizona, New Mexico,
California, or my visit to Antarctica as field assistant during grad school
here: Picasa Web Albums
If
you enjoy Irish music, you may find me playing music at the open session at Puirseil’s Irish Pub in Lewisburg on Friday evenings! Here
is a video of the house band Lux Bridge