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Route 101/101A road cuts, Amherst, Hillsborough Co., New Hampshire, USAi
Regional Level Types
Route 101/101A road cutsGroup of Road Cuttings
Amherst- not defined -
Hillsborough Co.County
New HampshireState
USACountry

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Latitude & Longitude (WGS84): 42° 49' 23'' North , 71° 36' 53'' West
Latitude & Longitude (decimal): 42.82306,-71.61472
GeoHash:G#: drt5d7ey2
Locality type:Group of Road Cuttings
Köppen climate type:Dfb : Warm-summer humid continental climate
Nearest Settlements:
PlacePopulationDistance
Milford8,835 (2017)3.1km
Amherst613 (2017)4.4km
Hollis7,711 (2017)9.1km
Mont Vernon2,166 (2017)9.3km
Wilton1,163 (2017)10.1km


Large road cuts (gneiss, schist, pegmatite) at the State Route 101/101-A interchange. Mostly in Milford, but a portion is in Amherst. Locality includes adjacent outcrop off of Route 101-A.

Regions containing this locality

North America PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


19 valid minerals.

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Reference: Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Allanite-(Ce)
Formula: {CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Anatase
Formula: TiO2
Reference: Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Babingtonite
Formula: Ca2(Fe,Mn)FeSi5O14(OH)
Reference: Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
'Biotite'
Calcite
Formula: CaCO3
Reference: Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
'Chabazite'
Reference: Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
'Chlorite Group'
Reference: Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Reference: Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Fluorapatite
Formula: Ca5(PO4)3F
Reference: P. Cristofono collection
Fluorite
Formula: CaF2
Reference: Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Hematite
Formula: Fe2O3
Reference: Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
'Heulandite subgroup'
'Hornblende'
'K Feldspar'
Reference: Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
'K Feldspar var: Adularia'
Formula: KAlSi3O8
Reference: Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Laumontite
Formula: CaAl2Si4O12 · 4H2O
Magnetite
Formula: Fe2+Fe3+2O4
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Prehnite
Formula: Ca2Al2Si3O10(OH)2
Reference: Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Pyrite
Formula: FeS2
Reference: Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Quartz
Formula: SiO2
Reference: Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Rutile
Formula: TiO2
Reference: Tom Mortimer
Sphalerite
Formula: ZnS
Reference: Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
'Stilbite subgroup'
Titanite
Formula: CaTi(SiO4)O
Reference: Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Zircon
Formula: Zr(SiO4)
Reference: P Cristofono collection 2010

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Pyrite2.EB.05aFeS2
Sphalerite2.CB.05aZnS
Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Anatase4.DD.05TiO2
Hematite4.CB.05Fe2O3
Magnetite4.BB.05Fe2+Fe3+2O4
Quartz4.DA.05SiO2
Rutile4.DB.05TiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Group 8 - Phosphates, Arsenates and Vanadates
Fluorapatite8.BN.05Ca5(PO4)3F
Group 9 - Silicates
Albite9.FA.35Na(AlSi3O8)
Allanite-(Ce)9.BG.05b{CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Babingtonite9.DK.05Ca2(Fe,Mn)FeSi5O14(OH)
Epidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Laumontite9.GB.10CaAl2Si4O12 · 4H2O
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Prehnite9.DP.20Ca2Al2Si3O10(OH)2
Titanite9.AG.15CaTi(SiO4)O
Zircon9.AD.30Zr(SiO4)
Unclassified Minerals, Rocks, etc.
'Biotite'-
'Chabazite'-
'Chlorite Group'-
'Heulandite subgroup'-
'Hornblende'-
'K Feldspar'-
'var: Adularia'-KAlSi3O8
'Stilbite subgroup'-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
AX2
Anatase4.4.4.1TiO2
Rutile4.4.1.1TiO2
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
A5(XO4)3Zq
Fluorapatite41.8.1.1Ca5(PO4)3F
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in >[6] coordination
Zircon51.5.2.1Zr(SiO4)
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
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)
Allanite-(Ce)58.2.1a.1{CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Epidote58.2.1a.7{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=5
Babingtonite65.4.1.2Ca2(Fe,Mn)FeSi5O14(OH)
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Group 72 - PHYLLOSILICATES Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings
Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings with 4-membered rings
Prehnite72.1.3.1Ca2Al2Si3O10(OH)2
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
Laumontite77.1.1.4CaAl2Si4O12 · 4H2O
Unclassified Minerals, Mixtures, etc.
'Biotite'-
'Chabazite'-
'Chlorite Group'-
'Heulandite subgroup'-
'Hornblende'-
'K Feldspar'-
'var: Adularia'-KAlSi3O8
'Stilbite subgroup'-

List of minerals for each chemical element

HHydrogen
H BabingtoniteCa2(Fe,Mn)FeSi5O14(OH)
H Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H PrehniteCa2Al2Si3O10(OH)2
H LaumontiteCaAl2Si4O12 · 4H2O
H MuscoviteKAl2(AlSi3O10)(OH)2
CCarbon
C CalciteCaCO3
OOxygen
O FluorapatiteCa5(PO4)3F
O BabingtoniteCa2(Fe,Mn)FeSi5O14(OH)
O Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O PrehniteCa2Al2Si3O10(OH)2
O QuartzSiO2
O AnataseTiO2
O HematiteFe2O3
O LaumontiteCaAl2Si4O12 · 4H2O
O MuscoviteKAl2(AlSi3O10)(OH)2
O K Feldspar (var: Adularia)KAlSi3O8
O TitaniteCaTi(SiO4)O
O MagnetiteFe2+Fe23+O4
O AlbiteNa(AlSi3O8)
O CalciteCaCO3
O ZirconZr(SiO4)
O RutileTiO2
FFluorine
F FluorapatiteCa5(PO4)3F
F FluoriteCaF2
NaSodium
Na AlbiteNa(AlSi3O8)
AlAluminium
Al Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Al PrehniteCa2Al2Si3O10(OH)2
Al LaumontiteCaAl2Si4O12 · 4H2O
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al K Feldspar (var: Adularia)KAlSi3O8
Al AlbiteNa(AlSi3O8)
SiSilicon
Si BabingtoniteCa2(Fe,Mn)FeSi5O14(OH)
Si Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Si PrehniteCa2Al2Si3O10(OH)2
Si QuartzSiO2
Si LaumontiteCaAl2Si4O12 · 4H2O
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si K Feldspar (var: Adularia)KAlSi3O8
Si TitaniteCaTi(SiO4)O
Si AlbiteNa(AlSi3O8)
Si ZirconZr(SiO4)
PPhosphorus
P FluorapatiteCa5(PO4)3F
SSulfur
S SphaleriteZnS
S PyriteFeS2
KPotassium
K MuscoviteKAl2(AlSi3O10)(OH)2
K K Feldspar (var: Adularia)KAlSi3O8
CaCalcium
Ca FluorapatiteCa5(PO4)3F
Ca BabingtoniteCa2(Fe,Mn)FeSi5O14(OH)
Ca Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ca PrehniteCa2Al2Si3O10(OH)2
Ca LaumontiteCaAl2Si4O12 · 4H2O
Ca TitaniteCaTi(SiO4)O
Ca CalciteCaCO3
Ca FluoriteCaF2
TiTitanium
Ti AnataseTiO2
Ti TitaniteCaTi(SiO4)O
Ti RutileTiO2
MnManganese
Mn BabingtoniteCa2(Fe,Mn)FeSi5O14(OH)
FeIron
Fe BabingtoniteCa2(Fe,Mn)FeSi5O14(OH)
Fe Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fe PyriteFeS2
Fe HematiteFe2O3
Fe MagnetiteFe2+Fe23+O4
ZnZinc
Zn SphaleriteZnS
ZrZirconium
Zr ZirconZr(SiO4)
CeCerium
Ce Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)

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: 3185307
Paleozoic intrusive rocks

Age: Paleozoic (358.9 - 443.8 Ma)

Lithology: Intrusive igneous 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]

Neoproterozoic
541 - 1000 Ma



ID: 2730099
Massabesic Gneiss Complex

Age: Neoproterozoic (541 - 1000 Ma)

Description: Quartzose-feldspathic gneiss and biotite schists (locally rusty), granofels, and cal-silicate rocks closely intruded by, and grading into, a pink gneissic granite (623 Ma) that produced a migmatite.

Comments: Part of the Nashoba-Casco-Miramichi Terrane (Merrimack Trough). Map page 2: Massabesic Gneiss Complex: 620-600 U/Pb, orthogneiss(?) per NH039. 646+/-? U/Pb, paragneiss, 475+/-? U/Pb, orthogneiss per NH038. 641+/-25 Rb/Sr, paragneiss(?) per NH040. 375+/-? U/Pb, monazite from aplite dike in Campbell Hill fault at western contact of Massabesic Gneiss per Barbara Barriero, oral commun., 1990. 384+/-2 and 275+/-2 U/Pb, monazite in paragneiss per J.N. Aleinikoff, oral commun., April 1993. 623+/-8 U/Pb ion probe, orthogneiss; earlier age of 475 (NH038) discredited per J.N. Aleinikoff, oral commun., Feb. 1994. Original map source: Bennett, D.S., Wittkop, C.A., and Dicken, C.L., 2006, Bedrock Geologic Map of New Hampshire - A Digital Representation of the Lyons and others 1997 map and ancillary files: U.S. Geological Survey Data Series 215, CD-ROM, scale 1:250,000.

Lithology: Major:{gneiss,biotite schist,granofels}, Minor:{calc silicate rock,granite,migmatite}

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]

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


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