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Barrett Brothers Quarry (D and J Quarry), Beacon Falls, New Haven Co., Connecticut, USA

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Latitude & Longitude (WGS84): 41° 25' 4'' North , 73° 4' 26'' West
Latitude & Longitude (decimal): 41.41778,-73.07389
GeoHash:G#: drk595vhn
Locality type:Quarry
Köppen climate type:Cfa : Humid subtropical climate


Superb specimens of quartz with zeolites and adularia in alpine clefts through a gneissic or schistose rock were recovered in the left portion of the quarry.

Some of the quartz crystals exhibit Dauphine twinning.

A variety of copper minerals occur at this medium-sized quarry. The copper minerals occur in schist and as grains in calcite marble. Primary metallic minerals are chalcopyrite, arsenopyrite, chalcocite, and questionable covellite. Secondary minerals are abundant on schist facies; brochantite is the most common secondary (pseudomalachite is questionable). On marble malachite and chrysocolla are obvious, from altered chalcopyrite grains. Allophane and arsenic were erroneously reported.

2/26/2007 -Linarite and brochantite were identified on samples collected at the mine.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


30 valid minerals. 2 erroneous literature entries.

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Reference: Jeremy Zolan- Examples observed 2/27/2007
Allophane
Formula: (Al2O3)(SiO2)1.3-2 · 2.5-3H2O
Reference: Specimens collected by Jeremy Zolan in Feb., 2006
Almandine
Formula: Fe2+3Al2(SiO4)3
Reference: Specimens collected by Jeremy Zolan in Feb., 2006
Analcime
Formula: Na(AlSi2O6) · H2O
Reference: Specimens collected by Jeremy Zolan in Feb., 2006
Anglesite
Formula: PbSO4
Reference: Jeremy Zolan Collecton- Specimens Identified 3/31/2007
Anhydrite
Formula: CaSO4
Habit: tabular prisms
Description: Present only as tabular molds cross-cutting quartz crystals, original mineral dissolved away.
Reference: Harold Moritz collection
Arsenic
Formula: As
Reference: Specimens collected by Jeremy Zolan in Feb., 2006
Arsenopyrite
Formula: FeAsS
Reference: Specimens collected by Jeremy Zolan in Feb., 2006
Beryl
Formula: Be3Al2(Si6O18)
Reference: Visually identified by Tynne in 2008
Brochantite
Formula: Cu4(SO4)(OH)6
Reference: Jeremy Zolan Collecton- Specimens Identified by wet chemistry, 2/26/2007.
Calcite
Formula: CaCO3
Reference: Specimens collected by Jeremy Zolan in Feb., 2006
Cerussite
Formula: PbCO3
Reference: Jeremy Zolan Collecton- Specimens Identified 3/31/2007
Chalcanthite
Formula: CuSO4 · 5H2O
Reference: Jeremy Zolan Collecton- Specimens Identified 3/30/2007
Chalcocite
Formula: Cu2S
Reference: Specimens collected by Jeremy Zolan in Feb., 2006
Chalcopyrite
Formula: CuFeS2
Reference: Specimens collected by Jeremy Zolan in Feb., 2006
'Chlorite Group'
Reference: Mike Polletta specimen
Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Habit: crusts
Colour: pale blue
Description: blue crusts associated with malachite and chalcopyrite grains in marble
Reference: Harold Moritz collection
Chrysotile ?
Formula: Mg3(Si2O5)(OH)4
Reference: Specimens collected by Jeremy Zolan in Feb., 2006
Covellite ?
Formula: CuS
Reference: Specimens collected by Jeremy Zolan in Feb., 2006
Cuprite
Formula: Cu2O
Reference: Jeremy Zolan Collecton- Specimens Identified 3/31/2007
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Reference: Specimens collected by Jeremy Zolan in Feb., 2006
Gypsum
Formula: CaSO4 · 2H2O
Reference: Specimens collected by Jeremy Zolan in Feb., 2006
'Hornblende'
Reference: Mike Polletta specimen
'K Feldspar'
Habit: wedge-shaped prisms
Colour: white
Description: Micro crystals to 5 mm or so in cavities with quartz and chlorite.
Reference: Jeremy Zolan- Examples observed 2/27/2007; Harold Moritz collection
'K Feldspar var: Adularia'
Formula: KAlSi3O8
Habit: wedge-shaped prisms
Colour: white
Description: Micro crystals to 5 mm or so in cavities with quartz and chlorite.
Reference: Jeremy Zolan- Examples observed 2/27/2007; Harold Moritz collection
Kyanite
Formula: Al2(SiO4)O
Description: Identified by Mike Polletta at the locality. 2010
Reference: Visually identified, occurring as blue and gray blades, blue is rare here.
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: Specimens collected by Jeremy Zolan in Feb., 2006
Linarite
Formula: PbCu(SO4)(OH)2
Reference: Jeremy Zolan Collecton- Specimens Identified 2/26/2007
Malachite
Formula: Cu2(CO3)(OH)2
Description: Encrusting over mica schist. Visually identified and confirmed at a CT museum.
Reference: Jeremy Zolan Collecton- Specimens Identified 3/30/2007
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Visual Identification by Mike Polletta
Pseudomalachite ?
Formula: Cu5(PO4)2(OH)4
Reference: Specimens collected by Jeremy Zolan in Feb., 2006
Pyrite
Formula: FeS2
Reference: Specimens collected by Jeremy Zolan in Feb., 2006
Quartz
Formula: SiO2
Habit: subparallel prismatic aggregates
Colour: milky
Description: Crystals in alpine clefts can reach a few inches. Hundreds of samples came from an approximately 1 meter cavity.
Reference: Specimens collected by Jeremy Zolan in Feb., 2006; Harold Moritz collection
Schorl
Formula: Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Habit: elongated prisms
Colour: black
Description: Subhedral crystals to 32mm in small pegmatites.
Reference: Harold Moritz collection
Staurolite
Formula: Fe2+2Al9Si4O23(OH)
Reference: Specimens collected by Jeremy Zolan in Feb., 2006
'Stilbite subgroup'
Habit: tabular prisms
Colour: white to pale gray
Description: Drusy microcrystals in alpine clefts with quartz, adularia, chlorite.
Reference: Specimens collected by Jeremy Zolan in Feb., 2006; Harold Moritz collection.
Titanite
Formula: CaTi(SiO4)O
Description: (micro, in matrix of quartz-adularia specimen)
Reference: Mike Polletta specimen
Tremolite
Formula: ☐{Ca2}{Mg5}(Si8O22)(OH)2
Habit: elongated prisms
Colour: very pale green
Description: subhedral elongate grains in marble
Reference: Harold Moritz

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
'Arsenic' ?1.CA.05As
Group 2 - Sulphides and Sulfosalts
'Arsenopyrite'2.EB.20FeAsS
'Chalcocite'2.BA.05Cu2S
'Chalcopyrite'2.CB.10aCuFeS2
'Covellite' ?2.CA.05aCuS
'Pyrite'2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
'Cuprite'4.AA.10Cu2O
'Quartz'4.DA.05SiO2
Group 5 - Nitrates and Carbonates
'Calcite'5.AB.05CaCO3
'Cerussite'5.AB.15PbCO3
'Malachite'5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
'Anglesite'7.AD.35PbSO4
'Anhydrite'7.AD.30CaSO4
'Brochantite'7.BB.25Cu4(SO4)(OH)6
'Chalcanthite'7.CB.20CuSO4 · 5H2O
'Gypsum'7.CD.40CaSO4 · 2H2O
'Linarite'7.BC.65PbCu(SO4)(OH)2
Group 8 - Phosphates, Arsenates and Vanadates
'Pseudomalachite' ?8.BD.05Cu5(PO4)2(OH)4
Group 9 - Silicates
'Albite'9.FA.35Na(AlSi3O8)
'Allophane' ?9.ED.20(Al2O3)(SiO2)1.3-2 · 2.5-3H2O
'Almandine'9.AD.25Fe2+3Al2(SiO4)3
'Analcime'9.GB.05Na(AlSi2O6) · H2O
'Beryl'9.CJ.05Be3Al2(Si6O18)
'Chrysocolla'9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
'Chrysotile' ?9.ED.15Mg3(Si2O5)(OH)4
'Epidote'9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
'Kyanite'9.AF.15Al2(SiO4)O
'Muscovite'9.EC.15KAl2(AlSi3O10)(OH)2
'Schorl'9.CK.05Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
'Staurolite'9.AF.30Fe2+2Al9Si4O23(OH)
'Titanite'9.AG.15CaTi(SiO4)O
'Tremolite'9.DE.10☐{Ca2}{Mg5}(Si8O22)(OH)2
Unclassified Minerals, Rocks, etc.
'Chlorite Group'-
'Hornblende'-
'K Feldspar'-
'var: Adularia'-KAlSi3O8
'Limonite'-(Fe,O,OH,H2O)
'Stilbite subgroup'-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Semi-metals and non-metals
Arsenic ?1.3.1.1As
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
Chalcocite2.4.7.1Cu2S
AmXp, with m:p = 1:1
Covellite ?2.8.12.1CuS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Arsenopyrite2.12.4.1FeAsS
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X
Cuprite4.1.1.1Cu2O
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Cerussite14.1.3.4PbCO3
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Anglesite28.3.1.3PbSO4
Anhydrite28.3.2.1CaSO4
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Chalcanthite29.6.7.1CuSO4 · 5H2O
Gypsum29.6.3.1CaSO4 · 2H2O
Group 30 - ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)m(XO4)pZq, where m:p>2:1
Brochantite30.1.3.1Cu4(SO4)(OH)6
(AB)2(XO4)Zq
Linarite30.2.3.1PbCu(SO4)(OH)2
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
(AB)5(XO4)2Zq
Pseudomalachite ?41.4.3.1Cu5(PO4)2(OH)4
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Almandine51.4.3a.2Fe2+3Al2(SiO4)3
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
Kyanite52.2.2c.1Al2(SiO4)O
Staurolite52.2.3.1Fe2+2Al9Si4O23(OH)
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination
Titanite52.4.3.1CaTi(SiO4)O
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Epidote58.2.1a.7{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
Beryl61.1.1.1Be3Al2(Si6O18)
Six-Membered Rings with borate groups
Schorl61.3.1.10Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Group 66 - INOSILICATES Double-Width,Unbranched Chains,(W=2)
Amphiboles - Mg-Fe-Mn-Li subgroup
Tremolite66.1.3a.1☐{Ca2}{Mg5}(Si8O22)(OH)2
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 1:1 layers
Allophane ?71.1.5.1(Al2O3)(SiO2)1.3-2 · 2.5-3H2O
Chrysotile ?71.1.5.1Mg3(Si2O5)(OH)4
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Group 74 - PHYLLOSILICATES Modulated Layers
Modulated Layers with joined strips
Chrysocolla74.3.2.1Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Group 77 - TECTOSILICATES Zeolites
Zeolite group - True zeolites
Analcime77.1.1.1Na(AlSi2O6) · H2O
Unclassified Minerals, Rocks, etc.
'Chlorite Group'-
'Hornblende'-
'K Feldspar'-
'var: Adularia'-KAlSi3O8
'Limonite'-(Fe,O,OH,H2O)
'Stilbite subgroup'-

List of minerals for each chemical element

HHydrogen
H Allophane(Al2O3)(SiO2)1.3-2 · 2.5-3H2O
H AnalcimeNa(AlSi2O6) · H2O
H BrochantiteCu4(SO4)(OH)6
H ChalcanthiteCuSO4 · 5H2O
H ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
H ChrysotileMg3(Si2O5)(OH)4
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H GypsumCaSO4 · 2H2O
H Limonite(Fe,O,OH,H2O)
H LinaritePbCu(SO4)(OH)2
H MalachiteCu2(CO3)(OH)2
H MuscoviteKAl2(AlSi3O10)(OH)2
H PseudomalachiteCu5(PO4)2(OH)4
H SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
H StauroliteFe22+Al9Si4O23(OH)
H Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
BeBeryllium
Be BerylBe3Al2(Si6O18)
BBoron
B SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
CCarbon
C CalciteCaCO3
C CerussitePbCO3
C MalachiteCu2(CO3)(OH)2
OOxygen
O K Feldspar (var: Adularia)KAlSi3O8
O AlbiteNa(AlSi3O8)
O Allophane(Al2O3)(SiO2)1.3-2 · 2.5-3H2O
O AlmandineFe32+Al2(SiO4)3
O AnalcimeNa(AlSi2O6) · H2O
O AnglesitePbSO4
O AnhydriteCaSO4
O BerylBe3Al2(Si6O18)
O BrochantiteCu4(SO4)(OH)6
O CalciteCaCO3
O CerussitePbCO3
O ChalcanthiteCuSO4 · 5H2O
O ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
O ChrysotileMg3(Si2O5)(OH)4
O CupriteCu2O
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O GypsumCaSO4 · 2H2O
O KyaniteAl2(SiO4)O
O Limonite(Fe,O,OH,H2O)
O LinaritePbCu(SO4)(OH)2
O MalachiteCu2(CO3)(OH)2
O MuscoviteKAl2(AlSi3O10)(OH)2
O PseudomalachiteCu5(PO4)2(OH)4
O QuartzSiO2
O SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
O StauroliteFe22+Al9Si4O23(OH)
O TitaniteCaTi(SiO4)O
O Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
NaSodium
Na AlbiteNa(AlSi3O8)
Na AnalcimeNa(AlSi2O6) · H2O
Na SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
MgMagnesium
Mg ChrysotileMg3(Si2O5)(OH)4
Mg Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
AlAluminium
Al K Feldspar (var: Adularia)KAlSi3O8
Al AlbiteNa(AlSi3O8)
Al Allophane(Al2O3)(SiO2)1.3-2 · 2.5-3H2O
Al AlmandineFe32+Al2(SiO4)3
Al AnalcimeNa(AlSi2O6) · H2O
Al BerylBe3Al2(Si6O18)
Al ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Al KyaniteAl2(SiO4)O
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Al StauroliteFe22+Al9Si4O23(OH)
SiSilicon
Si K Feldspar (var: Adularia)KAlSi3O8
Si AlbiteNa(AlSi3O8)
Si Allophane(Al2O3)(SiO2)1.3-2 · 2.5-3H2O
Si AlmandineFe32+Al2(SiO4)3
Si AnalcimeNa(AlSi2O6) · H2O
Si BerylBe3Al2(Si6O18)
Si ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Si ChrysotileMg3(Si2O5)(OH)4
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Si KyaniteAl2(SiO4)O
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si QuartzSiO2
Si SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Si StauroliteFe22+Al9Si4O23(OH)
Si TitaniteCaTi(SiO4)O
Si Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
PPhosphorus
P PseudomalachiteCu5(PO4)2(OH)4
SSulfur
S AnglesitePbSO4
S AnhydriteCaSO4
S ArsenopyriteFeAsS
S BrochantiteCu4(SO4)(OH)6
S ChalcanthiteCuSO4 · 5H2O
S ChalcociteCu2S
S ChalcopyriteCuFeS2
S CovelliteCuS
S GypsumCaSO4 · 2H2O
S LinaritePbCu(SO4)(OH)2
S PyriteFeS2
KPotassium
K K Feldspar (var: Adularia)KAlSi3O8
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca AnhydriteCaSO4
Ca CalciteCaCO3
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ca GypsumCaSO4 · 2H2O
Ca TitaniteCaTi(SiO4)O
Ca Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
TiTitanium
Ti TitaniteCaTi(SiO4)O
FeIron
Fe AlmandineFe32+Al2(SiO4)3
Fe ArsenopyriteFeAsS
Fe ChalcopyriteCuFeS2
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fe Limonite(Fe,O,OH,H2O)
Fe PyriteFeS2
Fe SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Fe StauroliteFe22+Al9Si4O23(OH)
CuCopper
Cu BrochantiteCu4(SO4)(OH)6
Cu ChalcanthiteCuSO4 · 5H2O
Cu ChalcociteCu2S
Cu ChalcopyriteCuFeS2
Cu ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Cu CovelliteCuS
Cu CupriteCu2O
Cu LinaritePbCu(SO4)(OH)2
Cu MalachiteCu2(CO3)(OH)2
Cu PseudomalachiteCu5(PO4)2(OH)4
AsArsenic
As ArsenicAs
As ArsenopyriteFeAsS
PbLead
Pb AnglesitePbSO4
Pb CerussitePbCO3
Pb LinaritePbCu(SO4)(OH)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

Devonian - Silurian
358.9 - 443.8 Ma



ID: 2761623
The Straits Schist (Goshen Formation of Massachusetts)

Age: Paleozoic (358.9 - 443.8 Ma)

Stratigraphic Name: Goshen Formation; The Straits Schist

Description: Silvery to gray, non-rusty, coarse- to very coarse grained, generally poorly layered schist, composed of quartz, muscovite, biotite, oligoclase, garnet, and commonly with staurolite and kyanite or sillimanite; graphitic almost throughout. Distinctive sequence of metamorphic strata overlying the Collinsville Formation in the Bristol quad., is here correlated with the Straits Schist of Fritts (1963) in the Southington quad. Consists mainly of rusty-weathering, medium- to coarse-grained, commonly crenulated, garnet-bearing, graphitic, muscovite-rich, plagioclase-quartz schist with graded bedding. Unit is called The Straits Schist following the original usage of Rodgers and others (1959). In the southern part of the Bristol quad., unit includes the Southington Mountain Member (here reduced in rank) in its upper part. Age of The Straits is inferred to be Silurian or Devonian. Unit is tentatively correlated with the Goshen Formation based on lithologic similarities and a possible unconformity at the base (Simpson, 1990).

Comments: Part of Central Lowlands; Iapetus (Oceanic) Terrane - Connecticut Valley Synclinorium; Hartland Belt Secondary unit description per CT008. Original map source: Connecticut Geological and Natural History Survey, DEP, in cooperation with the U.S. Geological Survey, 2000, Bedrock Geology of Connecticut, shapefile, scale 1:50,000

Lithology: Major:{schist}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Ordovician - Neoproterozoic
443.8 - 1000 Ma



ID: 3190671
Precambrian-Phanerozoic sedimentary rocks

Age: Neoproterozoic to Ordovician (443.8 - 1000 Ma)

Lithology: Mudstone-carbonate-sandstone-conglomerate

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]

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


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