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.

Studies on the properties and behaviour of clay soils, conducted in Soil Engineering, have revealed the importance of Soil Structure in the control of the properties and response performance of clays. Early descriptions of clay soil structure, in the 1950s–1960s, using such terms as ‘honeycomb’, ‘cardhouse’, ‘flocculated’, ‘dispersed’ and ‘oriented’ testify to the level of descriptive scrutiny of the micromorphology of clay soils.

The name bentonite was suggested in 1898 by Knight for a peculiar claylike material with soapy properties from its occurrence in the Fort Benton unit of Cretaceous age formations in Wyoming (U.S.A.). Hewitt (1917) and Wherry (1917) first established that this particular clay is an alteration product of volcanic ash, although an earlier observation by Condra (1908) suggested this origin for a similar clay from northern Nebraska. Ross and Shannon (1926) presented the following definition which has been widely quoted:

Have you tried to walk across a farmer’s field in Montmorillon in France on a rainy October day? Marcel and Bertrand, his father, tried to do so in the fall of 1881 with fatal consequences. We will return to this terrible true story in the first chapter of this book for explaining how the soil at this place made it happen, continuing throughout the rest of the book by explaining how the dreadful soil, in fact, also has extremely beneficial properties in other contexts, like isolation of very hazardous waste.

The writer wishes to acknowledge the help of Dr. R. E. Grim of the Geology Department of the University of Illinois for supervising this work and for reading and criticizing this paper. Grateful acknowledgement is also made to Dr. W. F. Bradley of the Illinois Geological Survey and to Dr. G. W. Clark of the Chemistry Department of the University of Illinois for helpful suggestions in the theoretical and experimental X-ray work; to Dr. D. T. Englis of the Chemistry Department of the University of Illinois for allowing the use of the microphotometer; to Dr. M. M. Knechtel of the U. S. Geological Survey for making possible the field study of the Wyoming bentonite deposits; to the Baroid Sales Division of the National Lead Company for granting the fellowship under which this work was done and for supplying many of the samples which were used for study and to the geologists and chemists of that organization for allowing the use of their physical property determinations. <...>

Sandstone reservoirs are the host for almost 60 percent of the world’s oil and gas reserves, and an understanding of the factors that determine the location and distribution of reservoir-quality sandstones is essential for any successful exploration and exploitation program.

This text is primarily meant to cater the need of undergraduate and postgraduate students of Agricultural Universities/Institutes in India and is expected to be of help to teachers and researchers as well. An endeavour has been made to provide sufficient theoretical background on the subject matter to ensure that the procedures are not followed merely to obtain a numerical answer.

Soils consist of solid particles, enclosing voids or pores. The voids may be filled with air or water or both. These three soil states (or phases) can be visualized by the enlargement of three small samples of soil.

Дама общая характеристика месторождении тугоплавких и огнеупорных глин. Описаны промышленные и перспективные месторождения по районам СССР с привязкой к определенным геологическим структурам.
Приведены анализ потребности в глине по видам изделии (по пятилеткам) до 1990 г. включительно и сводные данные по состоянию запасов глин в целом по СССР и отдельным районам. Рассмотрена динамика добычи глин разрабатываемых месторождений и перспективы развития карьеров с целью обеспечения растущего производства. Дам перечень месторождений, которые могут быть использованы в качестве резервной сырьевой базы керамической промышленности.
Книга предназначена для работников керамической промышленности

В книге приведены сведения о комплексе свойств горных пород и углей глубоких горизонтов Кузбасса, полученных при изучении Прокопьевско-Киселевского месторождения. Основное внимание уделено прочностным и деформационным параметрам в связи с проблемой освоения больших глубин н необходимостью оценки поведения пород в различных горно-геологических условиях. В работе приводятся сведения о инженерно-геологических условиях формирования прочности, деформируемости и ползучести горных пород и углей. Предлагается комплексная оценка свойств пород на основе вдавливания плоского штампа, обосновываются теоретические и физические возможности метода. Анализ обширного экспериментального материала ведется на основе расчленения пород по основным структурам; рассматривается возможность использования физико-механических свойств пород при оцшіке горно-геологических явлений.

Монография рассчитана на научных работников, специалистов в области горной механики и проектировщиков