Meteoritical Bulletin: Entry for Thiel Mountains 07014

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Thiel Mountains 07014

Basic information

Name: Thiel Mountains 07014
This is an OFFICIAL meteorite name.
Abbreviation: TIL 07014
Observed fall: No
Year found: 2007
Country: Antarctica [Collected by Korean Expedition for Antarctic Meteorites (KOREAMET)]
Mass: 3.67 kg

Classification
history:

Meteoritical Bulletin:	MB 103	(2014)	Eucrite
Recommended:			Eucrite [explanation]

This is 1 of 576 approved meteorites (plus 1 unapproved name) classified as Eucrite. [show all]
Search for other: Achondrites, Eucrites, and HED achondrites

Comments:

Approved 30 Aug 2014

Writeup

help

Writeup from MB 103:

Thiel Mountains 07014 (TIL 07014) 85°21.02’S, 87°10.24’W

Antarctica

Found: 2007 Jan 2

Classification: HED achondrite (Eucrite)

Physical characteristics: The rock is completely covered with dark shiny fusion crust. The interior is very fresh and almost free of terrestrial weathering.

Petrography: The rock mostly consists of pyroxene (~53 vol.%) and plagioclase (~44 vol.%) with minor amounts of silica (~2.7 vol.%). Trace amounts of ilmenite, Ca-phosphate and troilite are also found. The rock is a breccia having clasts of basaltic and cumulate textures.

Geochemistry: Mineral compositions: low-Ca pyroxene En_40.4Wo_3.6, high-Ca pyroxene En_32.2Wo_35.5and plagioclase An_87.3in the gabbroic clasts while low-Ca pyroxene En_37.9Wo_5.7, high-Ca pyroxene En_31.9Wo_36.7and plagioclase An_89.2in the basaltic clasts. Oxygen isotopic composition: δ¹⁸O = 5.27‰, δ¹⁷O = 2.51‰ and Δ¹⁷O = 0.23‰ measured at UCLA. CI normalized REE abundance pattern (measured by ICP at KOPRI) of the gabbroic clast is similar to, e.g., Nuevo Laredo that is nearly flat with negative Eu anomaly, while that of the basaltic clast is similar to those of basaltic eucrites., i.e., relatively depleted in LREE with positive Eu anomaly.

Data from:
  MB103
  Table 0
  Line 0:

Origin or pseudonym:	Mt. Walcott
Date:	2007 Jan 2
Latitude:	85°21.02'S
Longitude:	87°10.24'W
Mass (g):	3666
Pieces:	1
Class:	Eucrite
Classifier:	B.-G. Choi, Seoul-NU, and A. E. Rubin, UCLA
Type spec mass (g):	970
Type spec location:	Seoul-NU
Main mass:	KOPRI
Comments:	Submitted by B.-G. Choi

Plots:

O isotopes:

Institutions
and collections

UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011)
Seoul-NU: Department of Earth Science Education, Room# 13-426, Seoul National University, Seoul, Korea, 151-748, South Korea (institutional address; updated 20 Dec 2014)
KOPRI: Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon, Korea, 406-840, South Korea; Website (institutional address; updated 20 Dec 2014)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full

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Geography:

Antarctica

Antarctica

Coordinates:
Recommended::	(85° 21' 1"S, 87° 10' 14"W)

Statistics:
This is 1 of 43856 approved meteorites from Antarctica (plus 3802 unapproved names)

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