Skip to Main Content
Skip Nav Destination
GEOREF RECORD

Interrogating the provenance of large river systems; multi-proxy in situ analyses in the Millstone Grit, Yorkshire

Penelope J. Lancaster, J. Stephen Daly, Craig D. Storey and Andrew C. Morton
Interrogating the provenance of large river systems; multi-proxy in situ analyses in the Millstone Grit, Yorkshire
Journal of the Geological Society of London (October 2016) 174 (1): 75-87

Abstract

Establishing the source(s) of sedimentary material is critical to many geological applications, but is complicated by the ability of some minerals to be recycled. To test the relative utility of current proxies for determining a unique provenance, new samples have been collected from the Namurian Millstone Grit Group of Yorkshire, England. Two K-feldspar (super 206) Pb/ (super 204) Pb isotope populations between 12.5 and 15.5 and c. 18.4 are consistent with Archaean-Proterozoic basement and Caledonian granites, respectively. Zircon U-Pb age populations at c. 2700, 2000 - 1000 and 430 Ma reflect a mixture of Archaean basement, overlying Proterozoic sediments and intrusive Caledonian granites, and epsilon Hf values in zircons of all ages indicate crystallization from reworked crust. Garnet major element compositions are relatively rich in Fe and low in Ca, indicative of derivation from a granulitic or charnockitic source. Rutile Cr/Nb ratios indicate that source rocks were dominantly metapelitic, and Zr-in-rutile thermometry records two populations representing lower (c. 650 degrees C) and higher (c. 800 degrees C) metamorphic grade material. Combining these results with published monazite and muscovite data suggests overall derivation from the Greenland Caledonides, with additional contributions from NE Scotland and western Norway, highlighting the power of multi-proxy provenance work, especially in tectonically and geologically complicated regions. Supplementary material: Sample details, full analytical methods, data tables and references for compilation figures in the text are available at https://doi.org/10.6084/m9.figshare.c.3515457


ISSN: 0016-7649
EISSN: 2041-479X
Coden: JGSLAS
Serial Title: Journal of the Geological Society of London
Serial Volume: 174
Serial Issue: 1
Title: Interrogating the provenance of large river systems; multi-proxy in situ analyses in the Millstone Grit, Yorkshire
Affiliation: University College Dublin, School of Earth Sciences, Dublin, Ireland
Pages: 75-87
Published: 20161020
Text Language: English
Publisher: Geological Society of London, London, United Kingdom
References: 85
Accession Number: 2016-096754
Categories: StratigraphyGeochronology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 1 table, geol. sketch maps
N53°19'60" - N54°40'00", W02°30'00" - E00°10'00"
Secondary Affiliation: University of Portsmouth, GBR, United KingdomHM Research Associates, GBR, United Kingdom
Country of Publication: United Kingdom
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States. Reference includes data from The Geological Society, London, London, United Kingdom
Update Code: 201647
Close Modal

or Create an Account

Close Modal
Close Modal