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Full Description
The idea for the present Spilite Volume was born during the Spilite Symposium at the XXIIIrd session of the International Geological Con gress in Prague, 1968. At that time, only a restricted number of petro logists working on spilites was present and, therefore, the group assem bled agreed that a Symposium Volume should also include recent papers by many other spilite specialists. At the same time it was agreed that the papers presented at the Symposium should be returned to the authors for changes and additions. This procedure of upgrading and amending the papers has continued until this year (1973) for various technical and editorial reasons. The information presented here is, therefore, up-to date. To those familiar with the spilite problem it is obvious that the time had come for a review of its state. Also, the existing litera ture had become so voluminous that a monographic review was necessary. Following a modern trend, the authorship for this review was spread among specialists with variable experience. For readers not necessarily familiar with the spilite problem, a brief summary is presented here. A short historical note is followed first by the observations, then by the interpretations, finally by some of the major features of scientific logic as they pertain to the problem of the primary or secondary origin of some of the rocks termed spilites and keratophyres.
Contents
1. Introductory and General Papers.- Some Notes on the Problem of Spilites.- Spilitic Magma. Characteristics and Mode of Formation.- Essai de Caractérisation Chimique des Associations Spilitiques.- Pyroxenes and the Basalt. Spilite Relation.- 2. Papers Proposing a Primary Origin.- A Reappraisal of the Textures and the Composition of the Spilites in the Permo-Carboniferous Verrucano of Glarus, Switzerland.- A Series of Magmatism Related to the Formation of Spilite.- Environmental Effects in Magmatic Spilite.- A Statistical Study of Specific Petrochemical Features of Some Spilitic Rock Series.- Middle Triassic Spilite-Keratophyre Association of the Dinarides and Its Position in Alpine Magmatic-Tectonic Cycle.- Petrogenesis of Spilites Occurring at Mandi, Himachal Pradesh, India.- General Features of the Spilitic Rocks in Finland.- The Relationships between Spilites and Other Members of the Oman Mountains Ophiolite Suite.- Gradation of Tholeiitic Deccan Basalt into Spilite, Bombay, India.- 3. Papers Proposing an Autohydrothermal or Autometamorphic Origin.- Vers une Meilleure Connaissance du Problème des Spilites à Partir de Données Nouvelles sur le Cortège Spilito-Keratophyrique Hercynotype.- Spilites of the Lucanian Apennine (Southern Italy).- Quelques Observations Nouvelles Relatives à la Genèse des Laves Spilitiques.- Comments on Spilitization of the Permian Eruptive Rocks of the Cho? Nappe in the West Carpathians, Slovakia.- 4. Papers Proposing a Secondary, Diagenetic or Metamorphic Origin.- Spilites as Weakly Metamorphosed Tholeiites.- On the Mineral Facies of Spilitic Rocks and Their Genesis.- The Pillow Lavas of Sakhalin and the Kurile Islands and Their Significance for the Solution of the Spilite Problems.- The Production of Spilitic Lithologies by BurialMetamorphism of Flood Basalts from the Canadian Keweenawan, Lake Superior.- A New Appraisal of Alpine Spilites.- A. Alphabetical List of 1. Literature on Spilites and Keratophyres.- 2. Related Literature (obviously only a selection).- B. Geographical Classification of Occurrences.- C. Classification According to the (proposed) Geological Age (as far as reported.- D. Classification According to the Years of Publication.
