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'Die Quarzfreien Porphyre des centralen Thüringer Waldgebirges und ihre Begleiter' (The Quartz-Free Porphyries of the Central Thuringian Forest Mountains and Their Companions) by Ernst Erhard Schmid, published in 1880, is a detailed geological study focusing on the porphyry formations within the Thuringian Forest region. This work provides a comprehensive analysis of the mineral composition, geological context, and associated rocks of these unique porphyries.Schmid’s research offers valuable insights into the petrology and mineralogy of the area, contributing to a deeper understanding of the geological history of the Thuringian Forest. This book remains a significant resource for geologists and researchers interested in the regional geology of Germany and the study of porphyritic rocks.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
