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QUESTION 1. In a general sense (decreases/increases N-S/E-W), how does fhe metamorphic grade change in the Dalradian rocks of Connemara?

QUESTION 1. In a general sense (decreases/increases N-S/E-W), how does fhe metamorphic grade change in the Dalradian rocks of Connemara?

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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there is a pattern of metamorphic grade given in the figures below (both images are same, one with more detail than the other) QUESTION 1. In a general sense (decreases/increases N-S/E-W), how does fhe metamorphic grade change in the Dalradian rocks of Connemara?
N ↑ 53°30′N Carboniferous limestone Carboniferous shale Silurian sedimentary rocks Ordovician sedimentary rocks Ordovician sedimentary rocks Ordovician volcanic rocks Lower Palaeozoic mafic intrusions Connemara Dalradian rocks Galway Batholith Oughterard Granite Silurian-Devonian granites 1.59 Finny 39 9'30 W Malgh Cuillon N84 An Spideat Bearna Ball Galway
Transcribed Image Text:N ↑ 53°30′N Carboniferous limestone Carboniferous shale Silurian sedimentary rocks Ordovician sedimentary rocks Ordovician sedimentary rocks Ordovician volcanic rocks Lower Palaeozoic mafic intrusions Connemara Dalradian rocks Galway Batholith Oughterard Granite Silurian-Devonian granites 1.59 Finny 39 9'30 W Malgh Cuillon N84 An Spideat Bearna Ball Galway
Key Currywongaun Intrusion 474.5t 1Ma Cikden N t staur migmatite Roundstone 10km Oughterard Granite Metagabbro & gneiss Delaney Dome Formation Connemara Dalradian rocks > Dating locality (Meta)gabbro 470.11 1.4Ma Leendun staur Oughterard granite 46251-1-2Ma South Mayo and is reproduced: under Dere An Mám Carboniferous rocks Silurian rocks Ordovician rocks Devonian granites Major fault ® staur sill migmatite Pleasese this specific atroution atement Contains in Public Sector Data (Geological Survey) censed under a Creative i Commons Atributions intematonal (CC publication contains Quanter 401licence The based on Crown Copyright on of Lang Property Services the Controler of Her Majesty's Stationary Office, Crown Oboynght and database nights 2014 Ordnance Survey Metamorphic zone boundary gt = garnet staur= staurolite sill sillimanite Figure A1. Simplified geological map of Connemara based on data from the GSI (www.gsi.ie), Yardley et al (1987), Friedrich et al (1999) & Friedrich & Hodges (2016).
Transcribed Image Text:Key Currywongaun Intrusion 474.5t 1Ma Cikden N t staur migmatite Roundstone 10km Oughterard Granite Metagabbro & gneiss Delaney Dome Formation Connemara Dalradian rocks > Dating locality (Meta)gabbro 470.11 1.4Ma Leendun staur Oughterard granite 46251-1-2Ma South Mayo and is reproduced: under Dere An Mám Carboniferous rocks Silurian rocks Ordovician rocks Devonian granites Major fault ® staur sill migmatite Pleasese this specific atroution atement Contains in Public Sector Data (Geological Survey) censed under a Creative i Commons Atributions intematonal (CC publication contains Quanter 401licence The based on Crown Copyright on of Lang Property Services the Controler of Her Majesty's Stationary Office, Crown Oboynght and database nights 2014 Ordnance Survey Metamorphic zone boundary gt = garnet staur= staurolite sill sillimanite Figure A1. Simplified geological map of Connemara based on data from the GSI (www.gsi.ie), Yardley et al (1987), Friedrich et al (1999) & Friedrich & Hodges (2016).
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