McCuddin Mountains, Marie Byrd Land, Western Antarctica, Antarctica i
Regional Level Types
McCuddin Mountains Group of Mountains
Marie Byrd Land Area
Western Antarctica Region
Antarctica Continent

The McCuddin Mountains is a small cluster of mountains in Antarctica consisting mainly of two large mountains, Mount Flint and Mount Petras, along with several scattered peaks and nunataks. Located in Marie Byrd Land, 64 km (40 mi) east of the Ames Range. The mountains were discovered and photographed from the air in a flight from West Base of the U.S. Antarctic Service on Dec. 14, 1940. They were mapped by U.S. Geological Survey (USGS) from surveys and U.S. Navy air photos, 1959-65. Named by Advisory Committee on Antarctic Names (US-ACAN) for Rear Admiral Leo B. McCuddin, U.S. Navy (USN), Commander of the U.S. Naval Support Force, Antarctica, 1972.

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Standard Detailed Gallery Strunz Chemical Elements

Mineral List

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4 valid minerals.

Rock Types Recorded

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Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Aenigmatite

Formula: Na₄[Fe²⁺₁₀Ti₂]O₄[Si₁₂O₃₆]

Locality: Reynolds Ridge, Mount Flint, McCuddin Mountains, Marie Byrd Land, Western Antarctica, Antarctica

References:

LeMasurier, W.E. (1990) B. Marie Byrd Land. In Volcanoes of the Antarctic Plate and Southern Oceans Vol. 48 - Antarctic Research Series. American Geophysical Union. p.146-255. doi:10.1029/AR048pp.212-215

ⓘ 'Alkali Feldspar'

Locality: Reynolds Ridge, Mount Flint, McCuddin Mountains, Marie Byrd Land, Western Antarctica, Antarctica

References:

ⓘ Augite

Formula: (Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆

Localities:

Reynolds Ridge, Mount Flint, McCuddin Mountains, Marie Byrd Land, Western Antarctica, Antarctica
Mount Flint, McCuddin Mountains, Marie Byrd Land, Western Antarctica, Antarctica

ⓘ Augite var. Titanium-bearing Augite

Formula: (Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)₂O₆

Locality: Mount Flint, McCuddin Mountains, Marie Byrd Land, Western Antarctica, Antarctica

References:

ⓘ 'Fayalite-Forsterite Series'

Localities:

Reynolds Ridge, Mount Flint, McCuddin Mountains, Marie Byrd Land, Western Antarctica, Antarctica
Mount Flint, McCuddin Mountains, Marie Byrd Land, Western Antarctica, Antarctica

ⓘ 'Feldspar Group'

Locality: Reynolds Ridge, Mount Flint, McCuddin Mountains, Marie Byrd Land, Western Antarctica, Antarctica

References:

ⓘ 'Glass'

Locality: Mount Flint, McCuddin Mountains, Marie Byrd Land, Western Antarctica, Antarctica

References:

ⓘ Kaersutite

Formula: NaCa₂(Mg₃AlTi⁴⁺)(Si₆Al₂)O₂₂O₂

Locality: Mount Flint, McCuddin Mountains, Marie Byrd Land, Western Antarctica, Antarctica

References:

ⓘ Magnetite

Formula: Fe²⁺Fe³⁺₂O₄

Locality: Reynolds Ridge, Mount Flint, McCuddin Mountains, Marie Byrd Land, Western Antarctica, Antarctica

References:

ⓘ Magnetite var. Titanium-bearing Magnetite

Formula: Fe²⁺(Fe³⁺,Ti)₂O₄

Locality: Reynolds Ridge, Mount Flint, McCuddin Mountains, Marie Byrd Land, Western Antarctica, Antarctica

References:

ⓘ 'Plagioclase'

Formula: (Na,Ca)[(Si,Al)AlSi₂]O₈

Locality: Mount Flint, McCuddin Mountains, Marie Byrd Land, Western Antarctica, Antarctica

References:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘ	Magnetite	4.BB.05	Fe²⁺Fe³⁺₂O₄
ⓘ	var. Titanium-bearing Magnetite	4.BB.05	Fe²⁺(Fe³⁺,Ti)₂O₄
Group 9 - Silicates
ⓘ	Augite	9.DA.15	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
ⓘ	var. Titanium-bearing Augite	9.DA.15	(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)₂O₆
ⓘ	Kaersutite	9.DE.15	NaCa₂(Mg₃AlTi⁴⁺)(Si₆Al₂)O₂₂O₂
ⓘ	Aenigmatite	9.DH.40	Na₄[Fe²⁺₁₀Ti₂]O₄[Si₁₂O₃₆]
Unclassified
ⓘ	'Alkali Feldspar'	-
ⓘ	'Feldspar Group'	-
ⓘ	'Fayalite-Forsterite Series'	-
ⓘ	'Plagioclase'	-	(Na,Ca)[(Si,Al)AlSi₂]O₈
ⓘ	'Glass'	-

List of minerals for each chemical element

O	Oxygen
O	ⓘ Aenigmatite	Na₄[Fe₁₀²⁺Ti₂]O₄[Si₁₂O₃₆]
O	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
O	ⓘ Kaersutite	NaCa₂(Mg₃AlTi⁴⁺)(Si₆Al₂)O₂₂O₂
O	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
O	ⓘ Magnetite var. Titanium-bearing Magnetite	Fe²⁺(Fe³⁺,Ti)₂O₄
O	ⓘ Fayalite-Forsterite Series
O	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
O	ⓘ Augite var. Titanium-bearing Augite	(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)₂O₆
Na	Sodium
Na	ⓘ Aenigmatite	Na₄[Fe₁₀²⁺Ti₂]O₄[Si₁₂O₃₆]
Na	ⓘ Kaersutite	NaCa₂(Mg₃AlTi⁴⁺)(Si₆Al₂)O₂₂O₂
Na	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Na	ⓘ Augite var. Titanium-bearing Augite	(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)₂O₆
Mg	Magnesium
Mg	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Mg	ⓘ Kaersutite	NaCa₂(Mg₃AlTi⁴⁺)(Si₆Al₂)O₂₂O₂
Mg	ⓘ Fayalite-Forsterite Series
Mg	ⓘ Augite var. Titanium-bearing Augite	(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)₂O₆
Al	Aluminium
Al	ⓘ Kaersutite	NaCa₂(Mg₃AlTi⁴⁺)(Si₆Al₂)O₂₂O₂
Al	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Al	ⓘ Augite var. Titanium-bearing Augite	(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)₂O₆
Si	Silicon
Si	ⓘ Aenigmatite	Na₄[Fe₁₀²⁺Ti₂]O₄[Si₁₂O₃₆]
Si	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Si	ⓘ Kaersutite	NaCa₂(Mg₃AlTi⁴⁺)(Si₆Al₂)O₂₂O₂
Si	ⓘ Fayalite-Forsterite Series
Si	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Si	ⓘ Augite var. Titanium-bearing Augite	(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)₂O₆
Ca	Calcium
Ca	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Ca	ⓘ Kaersutite	NaCa₂(Mg₃AlTi⁴⁺)(Si₆Al₂)O₂₂O₂
Ca	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Ca	ⓘ Augite var. Titanium-bearing Augite	(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)₂O₆
Ti	Titanium
Ti	ⓘ Aenigmatite	Na₄[Fe₁₀²⁺Ti₂]O₄[Si₁₂O₃₆]
Ti	ⓘ Kaersutite	NaCa₂(Mg₃AlTi⁴⁺)(Si₆Al₂)O₂₂O₂
Ti	ⓘ Magnetite var. Titanium-bearing Magnetite	Fe²⁺(Fe³⁺,Ti)₂O₄
Ti	ⓘ Augite var. Titanium-bearing Augite	(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)₂O₆
Fe	Iron
Fe	ⓘ Aenigmatite	Na₄[Fe₁₀²⁺Ti₂]O₄[Si₁₂O₃₆]
Fe	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Fe	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
Fe	ⓘ Magnetite var. Titanium-bearing Magnetite	Fe²⁺(Fe³⁺,Ti)₂O₄
Fe	ⓘ Fayalite-Forsterite Series
Fe	ⓘ Augite var. Titanium-bearing Augite	(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)₂O₆

Geochronology

Mineralization age: Miocene : 19.1 ± 1.0 Ma to 14.1 ± 0.6 Ma

Important note: This table is based only on rock and mineral ages recorded on mindat.org for this locality and is not necessarily a complete representation of the geochronology, but does give an indication of possible mineralization events relevant to this locality. As more age information is added this table may expand in the future. A break in the table simply indicates a lack of data entered here, not necessarily a break in the geologic sequence. Grey background entries are from different, related, localities.

Geologic Time

Rocks, Minerals and Events

ⓘ Tephrite	14.1 ± 0.6 Ma	Mount Flint, McCuddin Mountains, Marie Byrd Land, Western Antarctica, Antarctica
ⓘ Trachyte	19.1 ± 1.0 Ma	Reynolds Ridge, Mount Flint, McCuddin Mountains, Marie Byrd Land, Western Antarctica, Antarctica

Other Databases

Wikipedia:	https://en.wikipedia.org/wiki/McCuddin_Mountains
Wikidata ID:	Q6800732
GeoNames ID:	6637795

Localities in this Region

Antarctica

Western Antarctica
- Marie Byrd Land
  - McCuddin Mountains
    - Mount Flint
      - Reynolds Ridge

Other Regions, Features and Areas containing this locality

Antarctic MeteoritesGroup of Meteorite Fall Locations

Antarctic PlateTectonic Plate

Marie Byrd LandMagmatic Province

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

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Mineral List

Rock Types Recorded

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Detailed Mineral List:

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List of minerals arranged by Strunz 10th Edition classification

List of minerals for each chemical element

Geochronology

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Localities in this Region

Other Regions, Features and Areas containing this locality

McCuddin Mountains, Marie Byrd Land, Western Antarctica, Antarctica i
Regional Level Types
McCuddin Mountains Group of Mountains
Marie Byrd Land Area
Western Antarctica Region
Antarctica Continent