On the Pyromerides of Boulay Bay (Jersey)

Open Access
Publisher Website
Google Scholar
Abstract
The acid lavas forming the more easterly part of the northern coast of Jersey have been the subject of investigation by many geologists. M. de Lapparent, in a note on the eruptive rocks of the Isle of Jersey published in 1884, summarized these accounts, and his paper was extensively quoted by M. Noury in his ‘Geólogie de Jersey,’ published a few years later, the quotations including those paragraphs which relate to the work of previous authors. The earliest is that of Macculloch, in 1817, in which a hornstoneporphyry is noticed from this neighbourhood. A geological map of the island was published by A. Transon in 1851, in which the northern half of Boulay Bay is represented as being occupied by porphyries, the southern by grit, while the line of demarcation between the latter rock and the more easterly conglomerate is correctly indicated. In 1879 the ‘spherular character’ of the rhyolites of Boulay Bay was briefly noticed by Mr. Thomas Davies, principally from specimens supplied to him by Dr. Dunlop, of Jersey. M. Noury, in his work, supplements his quotations from M. de Lapparent with additional observations of his own on the characteristics and origin of the structures exhibited by the rhyolite, at the same time giving a map wherein the principal locality at which pyromerides occur is indicated. Since the publication of Noury's book, a few notes on Jersey have been intercalated in some general observations on the Channel islands by M. A. Bigot; and the Rev. Edwin Hill has

This publication has 0 references indexed in Scilit: