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Rearing Pond intrusion, Ashland County, Wisconsin, USAi
Regional Level Types
Rearing Pond intrusionIntrusion
Ashland CountyCounty
WisconsinState
USACountry

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Latitude & Longitude (WGS84):
46° 20' 34'' North , 90° 50' 12'' West
Latitude & Longitude (decimal):
46.34278,-90.83667
GeoHash:
G#: cbprsuqy0
GRN:
N31W46
Type:
Intrusion
Köppen climate type:
Dfb : Warm-summer humid continental climate
Nearest Settlements:
PlacePopulationDistance
Marengo111 (2017)9.0km
Mellen700 (2017)13.6km
Grand View163 (2017)21.0km
Ashland8,040 (2017)28.0km
Birch Hill293 (2017)29.2km
Mindat Locality ID:
212365
Long-form identifier:
mindat:1:2:212365:6
GUID (UUID V4):
0


The Rearing Pond Intrusion is part of the 1.1 billion year old Mellen Complex. It consists largely of melagabbro, troctolite and peridotite. This site is on a particular set of outcrops of this relatively small pluton. The basal peridotite layer is commonly serpentinized.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


3 valid minerals.

Detailed Mineral List:

ⓘ Anorthite
Formula: Ca(Al2Si2O8)
ⓘ Enstatite
Formula: Mg2Si2O6
ⓘ Forsterite
Formula: Mg2SiO4
ⓘ 'Orthopyroxene Subgroup'
ⓘ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
ⓘ 'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 9 - Silicates
ⓘForsterite9.AC.05Mg2SiO4
ⓘEnstatite9.DA.05Mg2Si2O6
ⓘAnorthite9.FA.35Ca(Al2Si2O8)
Unclassified
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
ⓘ'Orthopyroxene Subgroup'-
ⓘ'Serpentine Subgroup'-D3[Si2O5](OH)4

List of minerals for each chemical element

HHydrogen
Hⓘ Serpentine SubgroupD3[Si2O5](OH)4
OOxygen
Oⓘ AnorthiteCa(Al2Si2O8)
Oⓘ EnstatiteMg2Si2O6
Oⓘ ForsteriteMg2SiO4
Oⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Oⓘ Serpentine SubgroupD3[Si2O5](OH)4
NaSodium
Naⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mgⓘ EnstatiteMg2Si2O6
Mgⓘ ForsteriteMg2SiO4
AlAluminium
Alⓘ AnorthiteCa(Al2Si2O8)
Alⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Siⓘ AnorthiteCa(Al2Si2O8)
Siⓘ EnstatiteMg2Si2O6
Siⓘ ForsteriteMg2SiO4
Siⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Siⓘ Serpentine SubgroupD3[Si2O5](OH)4
CaCalcium
Caⓘ AnorthiteCa(Al2Si2O8)
Caⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate
USA

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.

References

Klewin, Kenneth, James Olmsted and Karl Seifert (1989) Rock types and relationships of the Mellen Igneous Complex - a one day field trip to the Keweenawan of the Mellen, Wisconsin: Proceedings 35th Institute on Lake Superior Geology: Vol. 2: C1 - C-15.
Fitz, Tom (2011) Granitic, gabbroic and ultramafic rocks of the Mellen Intrusive Complex in northern WisconsinInstitute on Lake Superior Geology, 57th Annual Meeting, Ashland, WI, vol 57 (2): 163 - 184.
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