From Wikipedia, the free encyclopedia
Volcanic rock type
Mugearite () is a type of
oligoclase -bearing
basalt , comprising
olivine ,
apatite , and opaque oxides. The main
feldspar in mugearite is oligoclase.
[1]
Mugearite is a
sodium -rich member of the
alkaline magma series . In the
TAS classification of volcanic rock, mugearite is classified as sodium-rich
basaltic trachyandesite .
[2]
Examples
Western Scotland
Mugearite was first identified at
Mugeary on the island of
Skye , Scotland by
Alfred Harker in 1904.
[3]
Outcrops of mugearite also occur on the island of
Mull . These examples of mugearite were formed during a period of continental
flood basalt
[4] volcanic activity that happened in western Scotland during the
Paleogene
period of the Earth's geological history, when the
North Atlantic Ocean opened between Europe and North America.
Oceanic islands
Mugearite has been erupted by the volcanoes of some
oceanic islands at
hotspots . Examples are
Hawaii ,
Ascension Island ,
Saint Helena ,
Réunion ,
Mauritius and
Tahiti .
[5]
Mars
Analysis of a
Martian rock found by the
Curiosity rover and named
"Jake Matijevic" (or "Jake M"), after a
NASA engineer, determined that this Martian rock is very similar to mugearite erupted on Earth.
[3]
[6]
[7]
[8]
References
^
"Mugearite" . Archived from
the original on 2016-03-03. Retrieved 2009-02-15 .
^ Le Bas, M. J.; Streckeisen, A. L. (1991). "The IUGS systematics of igneous rocks". Journal of the Geological Society . 148 (5): 825–833.
Bibcode :
1991JGSoc.148..825L .
CiteSeerX
10.1.1.692.4446 .
doi :
10.1144/gsjgs.148.5.0825 .
S2CID
28548230 .
^
a
b Amos, Jonathan (17 October 2012).
"Cosmic coincidence on the road to Glenelg" .
BBC News . Retrieved 20 October 2012 .
^ Williamson, I. T.; Bell, B. R. (1994). "The Palaeocene lava field of west-central Skye, Scotland: Stratigraphy, palaeogeography and structure". Transactions of the Royal Society of Edinburgh: Earth Sciences . 85 (1): 39–75.
doi :
10.1017/S0263593300006301 .
S2CID
131299688 .
^
https://www.tulane.edu/~sanelson/eens211/igneous_rocks_plate_tectonics.htm
^ Stolper, E.M.; Baker, M.B.; Newcombe, M.E.; Schmidt, M.E.; Treiman, A.H.; Cousin, A.; Dyar, M.D.; Fisk, M.R.; Gellert, R.; King, P.L.; Leshin, L.; Maurice, S.; McLennan, S.M.; Minitti, M.E.; Perrett, G.; Rowland, S.;
Sautter, V. ; Wiens, R.C.; MSL ScienceTeam (2013).
"The Petrochemistry of Jake_M: A Martian Mugearite" (PDF) .
Science . 341 (6153).
AAAS : 1239463.
Bibcode :
2013Sci...341E...4S .
doi :
10.1126/science.1239463 .
PMID
24072927 .
S2CID
16515295 .
^ Grotzinger, John (September 26, 2013).
"Introduction To Special Issue: Analysis of Surface Materials by the Curiosity Mars Rover" .
Science . 341 (6153): 1475.
Bibcode :
2013Sci...341.1475G .
doi :
10.1126/science.1244258 .
PMID
24072916 .
^ Webster, Guy; Brown, Dwayne (September 26, 2013).
"Science Gains From Diverse Landing Area of Curiosity" .
NASA . Retrieved September 27, 2013 .
Basalts by tectonic setting Basalts by form and flow Basalts by chemistry Important minerals