Resolution of regional fluid flow related to successive orogenic events on the Laurentian margin

Mark, Darren F.; Parnell, John; Kelley, Simon P. and Sherlock, Sarah C. (2007). Resolution of regional fluid flow related to successive orogenic events on the Laurentian margin. Geology, 35(6) pp. 547–550.

DOI: https://doi.org/10.1130/G23388A.1

Abstract

Seven localities distributed along a 180-km-long outcrop within the UK sector of the Laurentian margin were sampled, and all showed two phases of authigenic K-feldspar. The first phase was precipitated from a cool fluid of moderate salinity, and the second phase was precipitated from a hotter, more saline fluid. Ar-Ar ages for the two episodes of authigenesis are ca. 470 Ma and ca. 432 Ma. The data can be interpreted to represent two phases of regional-scale fluid migration related to Ordovician arc accretion and Silurian continent-continent convergence, corresponding to the Grampian and Scandian episodes of the Caledonian orogeny, respectively.

Viewing alternatives

Metrics

Public Attention

Altmetrics from Altmetric

Number of Citations

Citations from Dimensions
No digital document available to download for this item

Item Actions

Export

About