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Threlkeld Mine, Threlkeld, Threlkeld, Eden, Cumbria, England, UK

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Latitude & Longitude (WGS84): 54° 37' 31'' North , 3° 2' 44'' West
Latitude & Longitude (decimal): 54.62540,-3.04561
GeoHash:G#: gctyf8q20
UK National Grid Reference:NY325261
Locality type:Mine
Köppen climate type:Cfb : Temperate oceanic climate
Other/historical names associated with this locality:North and Western Region; Cumberland


No description has been added for this locality. Can you add one?

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


9 valid minerals.

Detailed Mineral List:

Andalusite
Formula: Al2(SiO4)O
Reference: BMS Database
Andalusite var: Chiastolite
Formula: Al2(SiO4)O
Reference: BMS Database
Baryte
Formula: BaSO4
Reference: BMS Database
Cerussite
Formula: PbCO3
Reference: BMS Database
'Chlorite Group'
Reference: BMS Database
Cordierite
Formula: (Mg,Fe)2Al3(AlSi5O18)
Reference: BMS Database
Dolomite
Formula: CaMg(CO3)2
Reference: BMS Database
Galena
Formula: PbS
Reference: BMS Database
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: BMS Database
Muscovite var: Illite
Formula: K0.65Al2.0[Al0.65Si3.35O10](OH)2
Reference: BMS Database
Pyrite
Formula: FeS2
Reference: BMS Database
Sphalerite
Formula: ZnS
Reference: BMS Database

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Galena2.CD.10PbS
Pyrite2.EB.05aFeS2
Sphalerite2.CB.05aZnS
Group 5 - Nitrates and Carbonates
'Cerussite'5.AB.15PbCO3
Dolomite5.AB.10CaMg(CO3)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
'Baryte'7.AD.35BaSO4
Group 9 - Silicates
'Andalusite'9.AF.10Al2(SiO4)O
var: Chiastolite9.AF.10Al2(SiO4)O
Cordierite9.CJ.10(Mg,Fe)2Al3(AlSi5O18)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
var: Illite9.EC.15K0.65Al2.0[Al0.65Si3.35O10](OH)2
Unclassified Minerals, Rocks, etc.
Chlorite Group-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Cerussite14.1.3.4PbCO3
AB(XO3)2
Dolomite14.2.1.1CaMg(CO3)2
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Baryte28.3.1.1BaSO4
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [4] and >[4] coordination
Andalusite52.2.2b.1Al2(SiO4)O
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with Al substituted rings
Cordierite61.2.1.1(Mg,Fe)2Al3(AlSi5O18)
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
var: Illite71.2.2d.2K0.65Al2.0[Al0.65Si3.35O10](OH)2
Unclassified Minerals, Rocks, etc.
Andalusite
var: Chiastolite
-Al2(SiO4)O
'Chlorite Group'-

List of minerals for each chemical element

HHydrogen
H Muscovite (var: Illite)K0.65Al2.0[Al0.65Si3.35O10](OH)2
H MuscoviteKAl2(AlSi3O10)(OH)2
CCarbon
C CerussitePbCO3
C DolomiteCaMg(CO3)2
OOxygen
O AndalusiteAl2(SiO4)O
O BaryteBaSO4
O CerussitePbCO3
O Andalusite (var: Chiastolite)Al2(SiO4)O
O Cordierite(Mg,Fe)2Al3(AlSi5O18)
O DolomiteCaMg(CO3)2
O Muscovite (var: Illite)K0.65Al2.0[Al0.65Si3.35O10](OH)2
O MuscoviteKAl2(AlSi3O10)(OH)2
MgMagnesium
Mg Cordierite(Mg,Fe)2Al3(AlSi5O18)
Mg DolomiteCaMg(CO3)2
AlAluminium
Al AndalusiteAl2(SiO4)O
Al Andalusite (var: Chiastolite)Al2(SiO4)O
Al Cordierite(Mg,Fe)2Al3(AlSi5O18)
Al Muscovite (var: Illite)K0.65Al2.0[Al0.65Si3.35O10](OH)2
Al MuscoviteKAl2(AlSi3O10)(OH)2
SiSilicon
Si AndalusiteAl2(SiO4)O
Si Andalusite (var: Chiastolite)Al2(SiO4)O
Si Cordierite(Mg,Fe)2Al3(AlSi5O18)
Si Muscovite (var: Illite)K0.65Al2.0[Al0.65Si3.35O10](OH)2
Si MuscoviteKAl2(AlSi3O10)(OH)2
SSulfur
S BaryteBaSO4
S GalenaPbS
S PyriteFeS2
S SphaleriteZnS
KPotassium
K Muscovite (var: Illite)K0.65Al2.0[Al0.65Si3.35O10](OH)2
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca DolomiteCaMg(CO3)2
FeIron
Fe Cordierite(Mg,Fe)2Al3(AlSi5O18)
Fe PyriteFeS2
ZnZinc
Zn SphaleriteZnS
BaBarium
Ba BaryteBaSO4
PbLead
Pb CerussitePbCO3
Pb GalenaPbS

Geochronology

Mineralization age: Carboniferous : 331 Ma to 316 Ma

Important note: This table is based only on rock and mineral ages recorded below 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 TimeRocks, Minerals and Events
Phanerozoic
 Paleozoic
  Carboniferous
   Pennsylvanian
ⓘ Illite (youngest age)316 Ma
   Mississippian
ⓘ Illite (oldest age)331 Ma

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

Ordovician
443.8 - 485.4 Ma



ID: 2033347
Ordovician Rocks (Undifferentiated)

Age: Ordovician (443.8 - 485.4 Ma)

Lithology: Mudstone, siltstone and sandstone

Reference: British Geological Survey. DiGMapGB-625. British Geological Survey ©NERC. [23]

Ordovician
443.8 - 485.4 Ma



ID: 3187232
Paleozoic volcanic rocks

Age: Ordovician (443.8 - 485.4 Ma)

Lithology: Strataform assemblage(s); intermediate volcanic rocks

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]

Early Ordovician
470 - 485.4 Ma



ID: 3157764
Early Ordovician limestone

Age: Early Ordovician (470 - 485.4 Ma)

Lithology: Major:{limestone}, Minor{sandstone,siltstone}

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]

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


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