Alfred Harker (1859–1939) was a prominent petrologist who spent his career at St John's College, Cambridge, lecturing on and researching rock formations and related geological activity. He was elected a fellow of the Royal Society in 1902, and was president of the Geological Society from 1916 to 1918. He used his Cambridge lectures as the foundation for this book (first published in 1909), offering an introduction to the development of rocks and related volcanic activity. With more than one hundred diagrams of various aspects of geological formations, this work also provides a visual guide to the location and formation of igneous rocks. Over the course of the work, he covers the themes of vulcanicity, rock structure, crystallization, the role of magma and the principles of rock classification, giving a broad picture of the field of petrology around the beginning of the twentieth century.
By:
Alfred Harker Imprint: Cambridge University Press Country of Publication: United Kingdom Dimensions:
Height: 216mm,
Width: 140mm,
Spine: 23mm
Weight: 520g ISBN:9781108028134 ISBN 10: 1108028136 Series:Cambridge Library Collection - Earth Science Pages: 408 Publication Date:19 May 2011 Audience:
College/higher education
,
Further / Higher Education
Format:Paperback Publisher's Status: Active
Preface; 1. Igneous action in relation to geology; 2. Vulcanicity; 3. Igneous intrusion; 4. Petrographical provinces; 5. Mutual relations of associated igneous rocks; 6. Igneous rocks and their constituents; 7. Rock-magmas; 8. Crystallization of rock-magmas; 9. Supersaturation and deferred crystallization; 10. Isomorphism and mixed crystals; 11. Structures of igneous rocks; 12. Mineralisers and pneumatolysis; 13. Magmatic differentiation; 14. Hybridism in igneous rocks; 15. Classification of igneous rocks; Index.