| | Journal (article/letter/editorial) | chemistry and petrogenesis of granular ejecta from the Alban Hills volcano (Central Italy) M. Federico1 and A...Sapienza'', Roma, Italy Dipartimento di Scienze della Terra, Universita di Perugia, Perugia, Italy With 8 Figures...Summary A suite of lithics (ejecta) collected from the latest erupted pyroclastic products of the Alban Hills...Hills volcano (Central Italy) has been studied to determine their mineralogical composition and to investigate...ejecta commonly have granular texture and consist of coarse-grained crystals often associated with a ®ne- | | | | WORLD OF NATURE | In full colour-an introduction to the composition, beauty and structure of our worlds...easily accessible, some deeply concealed—which are of considerable value to man. They differ in their structure...individual species of mineral, which will be of value and interest to students of the subject, while...the beauty of the mineral kingdom. The foreword is by Dr G. F. Claringbull, formerly Keeper of Mineralogy...British Museum (Natural History) and now Director of that museum. As he points out, there are not many | | | Journal (article/letter/editorial) | geochemical study of granular xenoliths from the Alban Hills volcano, Central Italy: bearing on evolutionary...Scienzedella Terra, University"La Sapienza", Roma, Italy 2 Istituto di Scienzedella Terra, Universityof Messina...Messina, C.P. 54, 98166 Messina-S. Agata, Italy 3 Department or Geology,Universityof Western Ontario...deposits emplaced during the latest stages of activity of the Alban Hills volcano range from ultramafic...ultramafic to salic. Ultramafic types consist of various proportions of olivine, spinel, clinopyroxene and phlogopite | | | Book | THE WORLD OF NATI In full color — an introduction to the reernn reste) beauty and structure of our worlds... THE WORLD MINER’ 2 | Adapted fre” ——__.afian of Vincenz. < Michele In the Earth’s crust lie numerous...easily accessible, some deeply concealed — which are of considerable value to man. They differ in their structure...individual species of mineral, which will be of value and interest to students of the subject, while...the beauty of the mineral kingdom. The foreword is by Dr G. F. Claringbull, formerly Keeper of Mineralogy | | | Book | easily accessible, some deeply concealed-which are of considerable value to man. They differ in their structure...individual species of mineral, which will be uf value and interest to students of the subject, while...the beauty of the mineral kingdom. The foreword is by Dr G. F. Claringbull, for:merly Keeper of Mineralogy...British Museum (Natural History) and now Director of that museum. As h'e points out, there are not many...provides an opportunity to study at leisure some of the best specimens, which few people have the opportunity | | | Book | A simple, clear exposition of the nature, occurrence and properties of minerals is accompanied by detailed...describing every aspect of the mineral world, this book gives the most complete coverage of the subject yet available...The basic chemistry of minerals, the principles governing the orderly arrangement of atoms that give rise...are fully explained. In addition, the fashioning of gemstones is explained in full, from building your...experienced lapidary for whom itwill be an invaluable work of reference. FOKRieterehee 543 O'DONOGHUE, MICHAEL | | | Book | The ENCYCLOPEDIA. of MINERALS ernel GEMSIONES Bele Megeckebe, con ce es . » originally published...published at $30.00 THE ENCYCLOPEDIA OF MINERALS AND GEMSTONES Edited by Michael O’Donoghue This comprehensive... A simple, clear exposition of the nature, occurrence and properties of minerals is accompanied by detailed...is abundantly illustrated throughout with hundreds of color photographs and many explanatory diagrams...describing every aspect of the mineral world, this book gives the most complete coverage of the subject yet available |
|