The laccolithic series

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ID: 302850
1949
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Abstract
The paper refers to recent work on albite dolerites in an Ordovician area between Builth and Llandrindod, central Wales. Near Llandrindod an intrusion formerly mapped as a single dolerite has been proved to consist of 315 separate intrusions each surrounded by lower Ordovician shales. Most of these are small bodies of mushroom form, and exposures of two of them in quarries show that they were fed along narrow pipe-like channels or stalks at right angles to their bases. The form of the space within which these intrusions are contained is similar to an asymmetrical laccolith. At Welfield near Builth dolerites are intruded as thin interrupted sheets at many different levels in shales; most are of flat mushroom form, but some are wing-like prolongations from short wide masses which are interpreted as feeders.
Reference Key
openalex_W2319492424 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors O. T. Jones, W. Pugh
Journal american journal of science
Year 1949
DOI
10.2475/ajs.247.6.353
URL
https://ajs.scholasticahq.com/article/58223.pdf
Keywords Keywords not found

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