The submarine eruption and emplacement of the Lower Rhyolitic Tuff Formation (Ordovician), N Wales
@article{Howells1986TheSE, title={The submarine eruption and emplacement of the Lower Rhyolitic Tuff Formation (Ordovician), N Wales}, author={M. F. Howells and A. J. Reedman and S. Campbell}, journal={Journal of the Geological Society}, year={1986}, volume={143}, pages={411 - 423} }
The Lower Rhyolitic Tuff Formation (up to 600 m thick) represents an eruptive cycle of acidic ash-flow tuff which is stratigraphically associated with marine sediments and subaqueously emplaced basalt lavas. The formation comprises volcaniclastic and pyroclastic megabreccias and breccias, massive welded and non-welded acidic ash-flow tuffs, reworked tuffs and tuffities, siltstones, rhyolite intrusions and extrusions. Its basal contacts vary from conformable, to disconformable and unconformableā¦Ā CONTINUE READING
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Discussion on the submarine eruption and emplacement of the Lower Rhyolitic Tuff Formation (Ordovician), North Wales
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