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Garnet lake property, Sarfartoq region, Isortoq Fjord (Søndre Isortoq), Qeqqata, Greenland, Denmark

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Latitude & Longitude (WGS84): 66° 27' North , 51° 53' West
Latitude & Longitude (decimal): 66.45000,-51.88333
GeoHash:G#: fgg452geq
Locality type:Property
Köppen climate type:ET : Tundra


Kimberlite dykes, explored for diamonds. So far, several microdiamonds and a couple of macrodiamonds have been found.
Located about 100 km east of Maniitsoq.


Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


6 valid minerals.

Detailed Mineral List:

Diamond
Formula: C
Reference: Hutchinson, M.T. (2005): Diamondiferous kimberlites from the Garnet Lake area, west Greenland: exploration methodologies and petrochemistry, Workshop on Greenland ´s diamond potential, Danmarks og Grønlands Geologiske Undersøgelse Rapport 2005/68, 7-9 November 2005 in Copenhagen
'Garnet Group'
Formula: X3Z2(SiO4)3
Reference: http://www.new-millennium.com.au/download/Greenland%20Diamond%20Find%20Announcement%20170904.pdf
Ilmenite
Formula: Fe2+TiO3
Reference: HUTCHINSON, M.T. & HEAMAN, L.M. (2008) Chemical and physical characteristics of diamond crystals from Garnet Lake, Sarfartoq, West Greenland: an association with carbonatitic magmatism. Canadian mineralogist 46, 1063-1078.
'Monazite'
Reference: HUTCHINSON, M.T. & HEAMAN, L.M. (2008) Chemical and physical characteristics of diamond crystals from Garnet Lake, Sarfartoq, West Greenland: an association with carbonatitic magmatism. Canadian mineralogist 46, 1063-1078.
Olekminskite
Formula: Sr(Sr,Ca,Ba)(CO3)2
Reference: HUTCHINSON, M.T. & HEAMAN, L.M. (2008) Chemical and physical characteristics of diamond crystals from Garnet Lake, Sarfartoq, West Greenland: an association with carbonatitic magmatism. Canadian mineralogist 46, 1063-1078.
Perovskite
Formula: CaTiO3
Reference: HUTCHINSON, M.T. & HEAMAN, L.M. (2008) Chemical and physical characteristics of diamond crystals from Garnet Lake, Sarfartoq, West Greenland: an association with carbonatitic magmatism. Canadian mineralogist 46, 1063-1078.
Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
Reference: HUTCHINSON, M.T. & HEAMAN, L.M. (2008) Chemical and physical characteristics of diamond crystals from Garnet Lake, Sarfartoq, West Greenland: an association with carbonatitic magmatism. Canadian mineralogist 46, 1063-1078.
Spinel
Formula: MgAl2O4
Reference: HUTCHINSON, M.T. & HEAMAN, L.M. (2008) Chemical and physical characteristics of diamond crystals from Garnet Lake, Sarfartoq, West Greenland: an association with carbonatitic magmatism. Canadian mineralogist 46, 1063-1078.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
'Diamond'1.CB.10aC
Group 4 - Oxides and Hydroxides
'Ilmenite'4.CB.05Fe2+TiO3
'Perovskite'4.CC.30CaTiO3
'Spinel'4.BB.05MgAl2O4
Group 5 - Nitrates and Carbonates
'Olekminskite'5.AB.40Sr(Sr,Ca,Ba)(CO3)2
Group 9 - Silicates
'Phlogopite'9.EC.20KMg3(AlSi3O10)(OH)2
Unclassified Minerals, Rocks, etc.
'Garnet Group'-X3Z2(SiO4)3
'Monazite'-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Semi-metals and non-metals
Diamond1.3.6.1C
Group 4 - SIMPLE OXIDES
A2X3
Ilmenite4.3.5.1Fe2+TiO3
Perovskite4.3.3.1CaTiO3
Group 7 - MULTIPLE OXIDES
AB2X4
Spinel7.2.1.1MgAl2O4
Group 14 - ANHYDROUS NORMAL CARBONATES
AB(XO3)2
Olekminskite14.2.2.3Sr(Sr,Ca,Ba)(CO3)2
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Phlogopite71.2.2b.1KMg3(AlSi3O10)(OH)2
Unclassified Minerals, Rocks, etc.
'Garnet Group'-X3Z2(SiO4)3
'Monazite'-

List of minerals for each chemical element

HHydrogen
H PhlogopiteKMg3(AlSi3O10)(OH)2
CCarbon
C DiamondC
C OlekminskiteSr(Sr,Ca,Ba)(CO3)2
OOxygen
O Garnet GroupX3Z2(SiO4)3
O IlmeniteFe2+TiO3
O OlekminskiteSr(Sr,Ca,Ba)(CO3)2
O PerovskiteCaTiO3
O PhlogopiteKMg3(AlSi3O10)(OH)2
O SpinelMgAl2O4
MgMagnesium
Mg PhlogopiteKMg3(AlSi3O10)(OH)2
Mg SpinelMgAl2O4
AlAluminium
Al PhlogopiteKMg3(AlSi3O10)(OH)2
Al SpinelMgAl2O4
SiSilicon
Si Garnet GroupX3Z2(SiO4)3
Si PhlogopiteKMg3(AlSi3O10)(OH)2
KPotassium
K PhlogopiteKMg3(AlSi3O10)(OH)2
CaCalcium
Ca OlekminskiteSr(Sr,Ca,Ba)(CO3)2
Ca PerovskiteCaTiO3
TiTitanium
Ti IlmeniteFe2+TiO3
Ti PerovskiteCaTiO3
FeIron
Fe IlmeniteFe2+TiO3
SrStrontium
Sr OlekminskiteSr(Sr,Ca,Ba)(CO3)2
BaBarium
Ba OlekminskiteSr(Sr,Ca,Ba)(CO3)2

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Archean
2500 - 4000 Ma



ID: 3135127
Archean amphibolite

Age: Archean (2500 - 4000 Ma)

Description: medium grade metamorphic

Lithology: Amphibolite

Reference: Asch, K. The 1:5M International Geological Map of Europe and Adjacent Areas: Development and Implementation of a GIS-enabled Concept. Geologisches Jahrbuch, SA 3. [147]

Neoarchean - Mesoarchean
2500 - 3200 Ma



ID: 3185645
Archean crystalline metamorphic rocks

Age: Archean (2500 - 3200 Ma)

Comments: Archaean Block Of Greenland

Lithology: Granitoid gneiss; granulite grade orthogneiss

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Mesoarchean
2800 - 3200 Ma



ID: 628249
Supracrustal; Sedimentary and/or volcanic: undivided

Age: Mesoarchean (2800 - 3200 Ma)

Description: Greenland, North Atlantic Craton (Greenland and Canada)

Comments: Craton and massif; Escher & Pulvertaft, 1995; Hamann et al., 2005; Jepsen, unpublished revisions, 2007-08

Lithology: Metavolcanic and metasedimentary gneiss

Reference: J.C. Harrison, M.R. St-Onge, O.V. Petrov, S.I. Strelnikov, B.G. Lopatin, F.H. Wilson, S. Tella, D. Paul, T. Lynds, S.P. Shokalsky, C.K. Hults, S. Bergman, H.F. Jepsen, and A. Solli. Geological map of the Arctic. doi:10.4095/287868. Geological Survey of Canada Map 2159A. [2]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Jensen, S.M., Secher, K. (2003): Investigating the diamond potential of southern West Greenland, GEUS Bulletin 4, Review of Survey activities, 69-72
Hutchinson, M.T. (2005): Diamondiferous kimberlites from the Garnet Lake
area, west Greenland: exploration methodologies and petrochemistry, Workshop on Greenland ´s diamond potential, Danmarks og Grønlands Geologiske Undersøgelse Rapport 2005/68, 7-9 November 2005 in Copenhagen.
HUTCHINSON, M.T. & HEAMAN, L.M. (2008) Chemical and physical characteristics of diamond crystals from Garnet Lake, Sarfartoq, West Greenland: an association with carbonatitic magmatism. Canadian mineralogist 46, 1063-1078.

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