Object # PRR-6197: Rock Sample

Media
Primary Field #	77M45
IGSN #	PRR006197
Kind of Object	Rock Sample
Rock Type	Igneous
Rock Name	Rhyolite Dike
Alternative Rock Name	Comendite
Sample Description	peralkaline dike; 2 pieces
Weight	1574 g
Susceptibility	15 x10-5 SI units
General Notes	Northern slopes of Mt. Morning. Dike cuts trachyandesite. See thesis for more information.
Continent	Antarctica
Region	Southern Victoria Land
Mountain/Island Name	Mt. Morning
Other Feature Name(s)	Gandalf Ridge
Precise Location	Gandalf Ridge
Coordinates	-78.333, 164.133 (78° 20' S, 164° 8' E)
Positioning Method	Geographic Name
Era	Cenozoic
Period	Neogene
Epoch	Miocene
Isotopic Age	Age Dating Method Mineral 17.56+/-0.56 Ma
Stratigraphy	Supergroup Group Formation Member Section Name Unit Thickness Sample Height Distance from Intrusion McMurdo Volcanic Group Erebus Volcanic Province
Additional Material	Geochemical data available at PetDB Reference
Primary Field Logistics	Helicopter
Secondary Field Logistics	Snowmobile
Data Sources	Notes Publication Master's thesis
Field Year Collected	1977
Collector	Muncy, Harold L.
Donor	Byrd Polar and Climate Research Center
References	Kyle, Philip R. and Muncy, H. Lee (1989). Geology and geochronology of McMurdo Volcanic Group rocks in the vicinity of Lake Morning, McMurdo Sound, Antarctica. Antarctic Science, 1, pp 345-350. doi:10.1017/S0954102089000520. Muncy, Harold Lee, 1979, Geologic history and petrogenesis of alkaline volcanic rocks, Mt. Morning, Antarctica, The Ohio State University, Master's thesis, 112pp.

If you would like a 3D scan of this sample, please contact the Curator.

Cite as: The Polar Rock Repository (PRR), Byrd Polar and Climate Research Center (BPCRC), Ohio State University: Polar rock and dredge samples available for research and educational use from the PRR. doi:10.7289/V5RF5S18 [date of access]

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