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Blue Mountains, Portland Parish, Jamaicai
Regional Level Types
Blue MountainsMountain
Portland ParishParish
JamaicaCountry

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Latitude & Longitude (WGS84):
18° 3' 4'' North , 76° 33' 40'' West
Latitude & Longitude (decimal):
18.05132,-76.56128
GeoHash:
G#: d71w9y1u8
GRN:
N13W52
Type:
Mountain
Köppen climate type:
Aw : Tropical savanna, wet
Nearest Settlements:
PlacePopulationDistance
Trinity Ville2,895 (2018)11.2km
Mavis Bank1,821 (2017)11.3km
Easington2,634 (2018)14.4km
Moore Town1,119 (2017)14.6km
Hope Bay1,666 (2018)16.4km
Mindat Locality ID:
72754
Long-form identifier:
mindat:1:2:72754:4
GUID (UUID V4):
0


Blue Mts. of east Jamaica.
Early Cretaceous accretion prism/subduction complex of island-arc system.
Tholeiitic HP-LT (2.6-3.5 kb, 235-240 °C) blueschists (meta-basalts, gabbros and peridotites, metaepiclastites, meta cherts, marbles, etc.), low-grade greenschists and calcalkaline hornblende-biotite-plagioclase amphibolites (mafic to quartzofeldspathic schists / Westphalia schists).
Original listed as Mt. Hibernia, however this only refers to a geologic description of schists in the region rather than a mountain.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


9 valid minerals.

Detailed Mineral List:

ⓘ Actinolite
Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Description: Traces in blueschists. In greenschists.
ⓘ Albite
Formula: Na(AlSi3O8)
Description: In blueschists. In greenschists.
ⓘ 'Chlorite Group'
Description: In blueschists. In greenschists.
ⓘ Chloritoid
Formula: Fe2+Al2O(SiO4)(OH)2
Description: In greenschists.
ⓘ 'Clinopyroxene Subgroup'
Description: Abundant in blueschists. Relictual in greenschists.
ⓘ 'Crossite'
Description: In blueschists.
ⓘ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Description: Traces in blueschists. Abundant in greenschists.
ⓘ Glaucophane
Formula: ◻[Na2][Mg3Al2]Si8O22(OH)2
Description: In blueschists.
ⓘ Native Gold
Formula: Au
Description: In heavily fractured schists of Mt. Hibernia.
ⓘ 'Pumpellyite Subgroup'
Formula: Ca2XAl2[Si2O6(OH)][SiO4](OH)2A
Description: In blueschists.
ⓘ Quartz
Formula: SiO2
Description: In blueschists. In greenschists.
ⓘ Riebeckite
Formula: ◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
Description: In blueschists.
ⓘ Stilpnomelane
Formula: (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
Description: In blueschists.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Gold1.AA.05Au
Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
Group 9 - Silicates
ⓘChloritoid9.AF.85Fe2+Al2O(SiO4)(OH)2
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘActinolite9.DE.10◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
ⓘGlaucophane9.DE.25◻[Na2][Mg3Al2]Si8O22(OH)2
ⓘRiebeckite9.DE.25◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
ⓘStilpnomelane9.EG.40(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
ⓘAlbite9.FA.35Na(AlSi3O8)
Unclassified
ⓘ'Chlorite Group'-
ⓘ'Crossite'-
ⓘ'Pumpellyite Subgroup'-Ca2XAl2[Si2O6(OH)][SiO4](OH)2A
ⓘ'Clinopyroxene Subgroup'-

List of minerals for each chemical element

HHydrogen
Hⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Hⓘ ChloritoidFe2+Al2O(SiO4)(OH)2
Hⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hⓘ Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
Hⓘ Pumpellyite SubgroupCa2XAl2[Si2O6(OH)][SiO4](OH)2A
Hⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Hⓘ Stilpnomelane(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
OOxygen
Oⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ ChloritoidFe2+Al2O(SiO4)(OH)2
Oⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oⓘ Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
Oⓘ Pumpellyite SubgroupCa2XAl2[Si2O6(OH)][SiO4](OH)2A
Oⓘ QuartzSiO2
Oⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Oⓘ Stilpnomelane(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
NaSodium
Naⓘ AlbiteNa(AlSi3O8)
Naⓘ Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
Naⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Naⓘ Stilpnomelane(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
MgMagnesium
Mgⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Mgⓘ Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
Mgⓘ Stilpnomelane(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
AlAluminium
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ ChloritoidFe2+Al2O(SiO4)(OH)2
Alⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alⓘ Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
Alⓘ Pumpellyite SubgroupCa2XAl2[Si2O6(OH)][SiO4](OH)2A
Alⓘ Stilpnomelane(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
SiSilicon
Siⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ ChloritoidFe2+Al2O(SiO4)(OH)2
Siⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siⓘ Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
Siⓘ Pumpellyite SubgroupCa2XAl2[Si2O6(OH)][SiO4](OH)2A
Siⓘ QuartzSiO2
Siⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Siⓘ Stilpnomelane(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
KPotassium
Kⓘ Stilpnomelane(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
CaCalcium
Caⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Caⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caⓘ Pumpellyite SubgroupCa2XAl2[Si2O6(OH)][SiO4](OH)2A
Caⓘ Stilpnomelane(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
FeIron
Feⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Feⓘ ChloritoidFe2+Al2O(SiO4)(OH)2
Feⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Feⓘ Stilpnomelane(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
AuGold
Auⓘ Native GoldAu

Other Regions, Features and Areas containing this locality

Caribbean PlateTectonic Plate
North America
North America Plate
The CaribbeanRegion

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References

www.researchgate.net (n.d.) https://www.researchgate.net/profile/Betsy_Bandy2/publication/233124605_Blueschist-greenschist_transition_in_the_Mt_Hibernia_Schist_Union_Hill_Parish_of_St_Thomas_Jamaica/links/5511e41a0cf270fd7e31a249/Blueschist-greenschist-transition-in-the-Mt-Hibernia-Schist-Union-Hill-Parish-of-St-Thomas-Jamaica.pdf
Draper, G. (1986) Blueschists and associated rocks in eastern Jamaica and their significance for Cretaceous plate-margin development in the northern Caribbean. Geological Society of America Bulletin 97:1, 48-60.
Abbott, R.N., Bandy, B.R., Jackson, T.A., Scott, P.W. (2003) Blueschist-Greenschist Transition in the Mt. Hibernia Schist, Union Hill, Parish of St. Thomas, Jamaica. International Geology Review, 45, 1-15.
Garrett, R.G., Lalor, G.C., Vutchkov, M. (2004) Geochemical exploration for gold in Jamaica: a comparison of stream sediment and soil surveys. Geochemistry: Exploration, Environment, Analysis, 4:2, 161-170.
Abbott, Richard N., Bandy, Betsy R. (2008) Amphibolite and blueschist-greenschist facies metamorphism, Blue Mountain inlier, eastern Jamaica. Geological Journal, 43 (5) 525-541 doi:10.1002/gj.1126
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