Добрый день, Коллеги. Важное сообщение, просьба принять участие. Музей Ферсмана ищет помощь для реставрационных работ в помещении. Подробности по ссылке
Scanning electron microscopy (SEM) has revolutionized our understanding of shale petroleum systems through microstructural characterization of dispersed organic matter (OM). However, as a result of the low atomic weight of carbon, all OM appears black in SEM (BSE [backscattered electron] image) regardless of differences in thermal maturity or OM type (kerogen types or solid bitumen).
Introduction to Carbonate Diagenesis Marine Diagenesis: Modern and Ancient Submarine lithification of Holocene carbonate sediments in the Persian Gulf E.A. SHINN Sedimentology 1969 12 109—144 A review of the origin and setting of tepees and their associated fabrics [abstract only, plus Figs. 9 and 10] C.G.ST.C. KENDALL & J. WARREN Sedimentology 1987 34 1007—1027 Microbial alteration of Bahamian deep-sea carbonates [abstract only, plus Figs. 11, 12 and 13] M.L. ZEFF & R.D. PERKINS Sedimentology 1979 26 175 —201 Holocene intertidal calcium carbonate cementation, Qatar, Persian Gulf [abstract only, plus Plates I a—f, V c and d] J.C.M. TAYLOR & L.V. ILLING
Geologists are mainly concerned with the study of the lithosphere. The sedimentary and metasedimentary rocks, although they constitute only 5 % of the lithosphere by volume, they occupy 75% of the exposed land area (PETTIJOHN, 1957). Thus, the study of sedimentary rocks is the major problem of geology. An obvious question arises in the study of sedimentary rocks: Under what conditions and by which processes were the sedimentary rocks in question deposited.
Сборник трудов содержит материалы докладов, представленных на 8-м Всероссийском литологическом совещании (Москва, 27-30 октября 2015г.), посвященном рассмотрению эволюции осадочного процесса в истории Земли, изучению осадочных пород, их генезиса (включая рудогенез), а также рассмотрению современного состояния литологических исследований в России. Сборник предназначен для широкого круга геологов и других специалистов, работающих в области исследования пород, а также преподавателей и студентов геологических ВУЗов.
During the past two to three decades, the scanning electron microscope (SEM) has become established as an essential tool in the study of sedimentary rocks, sediments, and soils. It provides a useful complement to the traditional role of the petrographic microscope, which became popular after the pioneering work of Henry Clifton Sorby in the second half of the nineteenth century (Sorby, 1877a,b, 1878).
The process sedimentology of tills is crucial to the understanding of the glacier ice–bed interface as a complex depositional, erosional and shear boundary layer. Consequently, it also plays a central role in deciphering the genesis of enigmatic subglacial bedforms such as drumlins, flutings and ribbed terrain. Yet, unlike the study of other boundary layers such as those that operate at the bed of fluvial, aeolian and deep water systems, our knowledge of subglacial process–formrelationships is relatively impoverished, largely due to the inaccessibility of glacier and ice sheet beds.
Geology today demands the knowledge of a large number of fundamental ideas which are provided by neighboring sciences. The student, or the geologist at the beginning of his career, runs the risk of losing himself in a multitude of details and complications, which will seldom be useful to him. To guide him, we have endeavored to prepare a work which is easy to read, not overburdened with tables and graphs, and which avoids swamping the reader with all the details of many specialized disciplines. Our aim is to stress the general facts and to bring out the conclusions which will enable the reader to reconstruct the great events that have taken place in the past on the surface of the earth. <...>
Torsten Bickert Zentrum fu¨r Marine Umweltwissenschaften, Universita¨t Bremen, Germany Steven N. Carey Graduate School of Oceanography, University of Rhode Island, Narragansett, Rhode Island, USA Jean-Claude Fauge`res Universite´ de Bordeaux, UMR CNRS 5805 EPOC, Talence Cedex, France Rudiger Henrich Department of Sedimentology and Paleoceanography, Faculty of Geosciences, University of Bremen, klagenfurter Straße, Bremen, and Fachbereich Geowissenschaften, Universita¨t Bremen, Germany Reinhard Hesse Earth and Planetary Sciences, McGill University, Montreal, Quebec, Canada
