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Current Research in EEPS: Dr. Nicole Nie, Carnegie Institution for Science

February 8 @ 4:00 pm - 5:00 pm CST

Current Research in EEPS: Dr. Nicole Nie, Carnegie Institution for Science

Lunar Volatile Loss in the Aftermath of the Giant Impact

Abstract:

The Moon is severely depleted in volatile elements compared to the Earth, from which the Moon received its most materials. Identifying the causes of the volatile depletion is critical for our understanding of the conditions under which the Moon formed and evolved. Various scenarios involving the giant impact and lunar magma ocean have been proposed to explain the depletion. In order to distinguish among them and to trace the volatile depletion processes, I turned to isotopes of moderately volatile elements (MVEs), in particular Rb and K. The isotopes of the two elements are sensitive to large-scale volatilization processes, but they remain unaffected by lunar core formation or magma eruption on lunar surface. In the presentation, I will show that the isotopic compositions of Rb, K, and other MVEs in the Moon require that the lunar volatile loss occurred in a partially vaporized protolunar disk. Volatile elements were transferred from the protolunar disk to the Earth through a slightly undersaturated vapor, leading to their depletion in the Moon.

 

Zoom information:
https://riceuniversity.zoom.us/j/96812705534?pwd=MWVzYkJNUTFUUlRvaE1DVW40RndIdz09
Passcode: 266605
Webinar ID: 968 1270 5534

Details

Date:
February 8
Time:
4:00 pm - 5:00 pm CST
Event Category:

Venue

Keith-Weiss Geological Laboratories – Room 100
Rice University, 6100 Main Street, MS 126
Houston, TX 77005 United States
+ Google Map
Phone:
713-348-4880
View Venue Website

Details

Date:
February 8
Time:
4:00 pm - 5:00 pm CST
Event Category:

Venue

Keith-Weiss Geological Laboratories – Room 100
Rice University, 6100 Main Street, MS 126
Houston, TX 77005 United States
+ Google Map
Phone:
713-348-4880
View Venue Website

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