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A palynological study on the upper los cuervos and mirador formations (Lower and Middle Eocene; Tibú area, Colombia)
special issue, A. Miyashiro discusses the "orogeny, regional metamorphism, and magmatism in the Japanese islands" and proposes a new hypothesis for the origin of the paired metamorphic belts and associated magmatism, The second paper deals with "metamorphism in the Precambrian of east Africa" and was presented by E.P. Saggerson. The next paper is a contribution by Russian scientists in the English language entitled "metamorphic facies and series of facies in the U.S.S.R." by V.S. Sobolev, N.L. Dobretsov, V.V. Reverdatto, N.V. Sobolev, E.N. Ushrakova and V.V. Khlestov. They propose a scheme of facies of regional metamorphism in which two pressure-dependent facies series are recognized, A review of the "charnockites and granulites of southern India" was written by A.P. Subramaniam. It covers the various ideas which have been published with regard to the origin of the mentioned rock types, Information about the metamorphic geology of Australia is given by T.G. Vallance in his paper "Palaeozoic low-pressure regional metamorphism in southeastern Australia". Finally, in his paper "orogenesis and metamorphic facies series in Europe", the chairman of the working group, H.J. Zwart, discusses the metamorphism of the different European orogenic belts at~d compares these belts with the paired metamorphic belts of the circumPacific region, A.S.T. Tan
Spores of the European
Tertiary W. Krutzsch, 1967. Atlas der
mittel- und/ungtertii~ren dispersen Sporen und Pollen sowie der Mikroplanktonformen des ni~rdlichenMitteleuropas, 4-5. Weitere azonotrilete (apiculate, murornate)zonotrilete, monolete und alete Sporenformen.
central-European Middle and Upper Tertiary. From a practical point of view there is much to say in favour of this procedure. It is questionable, however, whether they should be treated among the autochthonous spores, as Krutzsch does, or in the final pages, as the reviewer would have preferred. A.A.M.
Fischer, Jena, 232 pp., 17 fig., 90 plates, 3 tables, broch. MDN 98.00° Krutzsch's projected large monographic work is already widely known among palynologists since the appearance of the first three issues. Therefore, little recommendation needs to be added to this series at this point, i.e., at the appearance of the double issue 4 - 5 . Besides Krutzsch himself, B. Pacltov~ of Prague and E. Sontag of Freiberg have also contributed to this issue. Of the 33 spore genera treated, seven are new, the majority of the other's have been revised and two have been renamed. The descriptions of these genera take up the first 30 pages of the work. The remaining (approx. 200) pages constitute the atlas section in which 128 species (of which 79 are new) and 44 subspecies (of which 34 are new) are described and presented in reasonably good-quality illustrations. The amount of illustrative material can be gauged from the fact that there are 90 plates with an average of more than 12 figures per plate. Among the spores discussed, there are also a certain number of older, trilete spores which can, however, be encountered as reworked specimens in the
ColombianEocene
Palyn010gy A.E. Gonz~lez Guzm~n, 1967.
A Palynological Stud3' on the Upper Los Cuervos andMirador Formations (Lower and Middle Eocene; Tibd area, Colombia). Brill, Leiden, 129 pp., 4 fig., 30 plates, Dr. 38.00. The monograph by Gonzalez Guzm~n is based on the study of samples from three drill-hole sections in the region of Tibt~, Colombia, South America. Not less than 113 new form species and twenty new form genera of sporomorphs are described. A detailed palynological zonation for the Lower and Middle Eocene of the area studied is proposed and attempts are made to deduct the ancient flora and the environmental conditions under which it developed. The book is well printed on good quality paper. The lay-out of the text part could have been better; in particular, more conspicuous headings and subheadings would have improved the readability. A.A.M.
Al13
Spores of the European
Tertiary W. Krutzsch, 1967. Atlas der
mittel- und/ungtertii~ren dispersen Sporen und Pollen sowie der Mikroplanktonformen des ni~rdlichenMitteleuropas, 4-5. Weitere azonotrilete (apiculate, murornate)zonotrilete, monolete und alete Sporenformen.
central-European Middle and Upper Tertiary. From a practical point of view there is much to say in favour of this procedure. It is questionable, however, whether they should be treated among the autochthonous spores, as Krutzsch does, or in the final pages, as the reviewer would have preferred. A.A.M.
Fischer, Jena, 232 pp., 17 fig., 90 plates, 3 tables, broch. MDN 98.00° Krutzsch's projected large monographic work is already widely known among palynologists since the appearance of the first three issues. Therefore, little recommendation needs to be added to this series at this point, i.e., at the appearance of the double issue 4 - 5 . Besides Krutzsch himself, B. Pacltov~ of Prague and E. Sontag of Freiberg have also contributed to this issue. Of the 33 spore genera treated, seven are new, the majority of the other's have been revised and two have been renamed. The descriptions of these genera take up the first 30 pages of the work. The remaining (approx. 200) pages constitute the atlas section in which 128 species (of which 79 are new) and 44 subspecies (of which 34 are new) are described and presented in reasonably good-quality illustrations. The amount of illustrative material can be gauged from the fact that there are 90 plates with an average of more than 12 figures per plate. Among the spores discussed, there are also a certain number of older, trilete spores which can, however, be encountered as reworked specimens in the
ColombianEocene
Palyn010gy A.E. Gonz~lez Guzm~n, 1967.
A Palynological Stud3' on the Upper Los Cuervos andMirador Formations (Lower and Middle Eocene; Tibd area, Colombia). Brill, Leiden, 129 pp., 4 fig., 30 plates, Dr. 38.00. The monograph by Gonzalez Guzm~n is based on the study of samples from three drill-hole sections in the region of Tibt~, Colombia, South America. Not less than 113 new form species and twenty new form genera of sporomorphs are described. A detailed palynological zonation for the Lower and Middle Eocene of the area studied is proposed and attempts are made to deduct the ancient flora and the environmental conditions under which it developed. The book is well printed on good quality paper. The lay-out of the text part could have been better; in particular, more conspicuous headings and subheadings would have improved the readability. A.A.M.
Al13