The Quarterly journal of the Geological Society of London . AWWaters del. litK ?Mirvtern. Bros irrgp. N 0 PvT K -1 T.^L L^T-T B RY O Z OA. i)viavb. JourR;G--l ^-c .Vol. XLVII. lith. N 0 RTH -1T ALIAN B RY0 Z CA, Minbem. Bros. imo. ON THE rORPHTRTTTC ROCKS OF THE ISLA^^I> OF JERSEY. 35 2. On the Poephtritic Eocks of the Islais^d of Jersey. By de Lapparext, Foreign Correspondent of the Society.(Eead :N^ovember 12, 1890.) (Communicated by the President.) HavijSG been supj)lied some years ago, through the kindness of myfriend the Ptev. C. Noury, of St.
The Quarterly journal of the Geological Society of London . AWWaters del. litK ?Mirvtern. Bros irrgp. N 0 PvT K -1 T.^L L^T-T B RY O Z OA. i)viavb. JourR;G--l ^-c .Vol. XLVII. lith. N 0 RTH -1T ALIAN B RY0 Z CA, Minbem. Bros. imo. ON THE rORPHTRTTTC ROCKS OF THE ISLA^^I> OF JERSEY. 35 2. On the Poephtritic Eocks of the Islais^d of Jersey. By de Lapparext, Foreign Correspondent of the Society.(Eead :N^ovember 12, 1890.) (Communicated by the President.) HavijSG been supj)lied some years ago, through the kindness of myfriend the Ptev. C. Noury, of St. Heher, with a good series of speci-mens of porphyritic rocks from the Island of Jersey, I was struck bythe exceptional appearance of some felsitic and globular varieties, inwhich the spheroidal concretions, instead of being minute globules,as in the usual pyromerides, attained a size of two feet and more indiameter. According to the information which I then possessed,the porphyritic rocks occupied the whole of the north-eastern partof the Island, resting on Cambrian schists, and underlying, fromRozel to St. Catherines Baj, a coarse conglomerate, which had beendescribed by Ansted
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Keywords: ., bookcentury1800, bookdecade1840, bookidquarte, booksubjectgeology
