Geology in the field / Геология в полевых условиях

Geology has evolved greatly since I wrote the Manual of Field Geology in the 1950s. Advances in theory have transformed the formation mapping of that time into increasingly broader and more interpretive studies. We have much to seek at the outcrop, and the rising costs of field work compel us to recognize key features the first time around. In addition, mapping and data collecting must be more consistent and accurate than ever. This book is ·intended as a guide for these modern studies. Its form is compact so that it can be carried in the field, yet most procedures are spelled out completely. Half the book consists of brief descriptions of textures and structures helpful in interpreting depositional environments, kinds of volcanic activity, and plutonic events and conditions. To encourage full interpretation during the field season, procedures are included that are often reserved for the laboratory or office: staining rocks, correcting orientations of current indicators, constructing profile sections of folds, measuring strains, making photogeologic interpretations, and so on <...>