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Quantitative mineralogy from the Lower Jurassic of the Llanbedr (Mochras Farm) borehole, Wales

Publisher
British Geological Survey (BGS)
Updated
28 August 2026
Topic
Not set
Licence
Not set

Summary

Integrated petrological observation of samples from the Lower Jurassic of the Llanbedr (Mochras Farm) borehole, Wales. The data include quartz grain size and percentages of the major detrital minerals present in each sample. Analyses were carried out using automated mineralogy (QEMSCAN) technology. QEMSCAN® (Quantitative Evaluation of Minerals by Scanning Electron Microscopy) allows mapping of grains from elemental compositions, including attributes such as texture, shape, size and constituent mineral phases. Data relate to the Llanbedr (Mochras Farm) Borehole drilled in 1967-1969 near the village of Llanbedr, NW Wales, SH 5533 2594. The aim for generating these data was to provide mineralogical context for paleoenvironmental proxy interpretations from the Llanbedr (Mochras Farm) core. Samples from the UK National Geological Repository range from SSK Publication in press, Jiang et al. (2026) Laurasian Seaway history during the Early Jurassic from quantitative mineralogy and detrital zircon dating. Paleoceanography and Paleoclimatology.

Data links

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Citation Information - Digital Object Identifier (DOI) 28/8/2026
Data 28/8/2026

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Additional information

Source Metadata
XML, HTML
Date added
26 August 2026
Harvest GUID
51ae5311-a10b-b929-e063-3050940ab175
Extent (Latitude)
52.8109° to 52.8109°
Extent (Longitude)
-4.1471° to -4.1471°
Dataset reference date (creation)
2026-05-08
Frequency of update
notApplicable
Access constraints
The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in any form or by any means, or stored in a retrieval system of any nature, without the prior permission of the copyright holder, via the BGS Intellectual Property Rights Manager. Use by customers of information provided by the BGS, is at the customer's own risk. In view of the disparate sources of information at BGS's disposal, including such material donated to BGS, that BGS accepts in good faith as being accurate, the Natural Environment Research Council (NERC) gives no warranty, expressed or implied, as to the quality or accuracy of the information supplied, or to the information's suitability for any use. NERC/BGS accepts no liability whatever in respect of loss, damage, injury or other occurence however caused.
Responsible party
University of Exeter (originator); Polish Geological Institute (originator); Jagiellonian University (originator); British Geological Survey (distributor, originator, pointOfContact)
ISO 19139 resource type
dataset
Metadata language
eng

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