Proceedings of the Royal Society of Victoria, 1897, Vol. 10

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Excerpt from Proceedings of the Royal Society of Victoria, 1897, Vol. 10: Part I., Edited Under the Authority of the Council The intercalated bands at the quarry of sand and angular quartz gravel indicate that freshets occurred in the streams emptying into the lake in this region, and the fact that only isolated bones have been discovered suggests that the bones were brought down by streams to their final resting place. The very hard quartzites appear to have been formed by the action of silicious springs. The microscopic examination of the rock strongly confirms this view 3 in the slide rounded and sub angular grains of quartz are set in a matrix of extremely minute specks of quartz, which acts as a cementing material. The peripheral markings of some of the quartz-grains may possibly be explained on the supposition that there has been a growth of the quartz by its taking up some Of the Silica in solution. There is a good deal of black dust, probably magnetite, scattered through the slide, and it is quite possible that, to some slight extent, the grains are bound together by a ferruginous cement. A few highly refracting and brightly polarising grains visible in the slide indicate, in all probability, the presence of zircons. There is no trace of felspar among the grains. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.