Coring is the removal of sample formation material from a wellbore. To the extent possible, core samples are taken in an undamaged, physically unaltered state. The formation material may be solid rock, friable rock, conglomerates, unconsolidated sands, coal, shales, gumbos, or clays. Coring can be conducted by various methods with a variety of tools.

Microscopy is a servant of all the sciences, and the microscopic examination of minerals is an important technique which should be mastered by all students of geology early in their careers. Advanced modern textbooks on both optics and mineralogy are available, and our intention is not that this new textbook should replace these but that it should serve as an introductory text or a first stepping-stone to the study of optical mineralogy. The present text has been written with full awareness that it will probably be used as a laboratory handbook, serving as a quick reference to the properties of minerals, but nevertheless care has been taken to present a systematic explanation of the use of the microscope as well as theoretical aspects of optical mineralogy. The book is therefore suitable for the novice either studying as an individual or participating in classwork. <...> 

Techniques of geologicmapping and geologicmap creation have changed significantly from traditional paper-based methods. Geologic mapping and data collection in the field is now primarily facilitated by mobile devices and dedicated geologic mapping software. Geologic map production has become a fully integrated process, importing digital data from the field and making use of cartographic software, such as ArcGIS and Adobe Illustrator, to create interactive geologic map products.

This laboratory manual is based on our collective 70-plus years of teaching and coordinating introductory geology courses. Those experiences have helped us understand not only how students best learn geologic principles, but also how to stimulate their engagement with the material to enhance their learning process. Our manual provides (1) an up-to-date, comprehensive background that addresses the hands-on tasks at the core of any introductory geology course; (2) patient stepby-step explanations that are more easily understood by students than those in textbooks; (3) text and exercises that lead students to think like geologists, engaging them in solving real-life problems important to their lives; and (4) the passion and excitement that we still feel after decades as teachers and geologists.

The technical world is changing very rapidly. In only 15 years, the power of personal computers has increased by a factor of nearly one-thousand. By all accounts, it will increase by another factor of one-thousand in the next 15 years. This tremendous power has changed the way science and engineering is done, and there is no better example of this than Digital Signal Processing. <...>

This book is not a text on geomorphological techniques. It is intended as a field handbook to be used during the conduct of geomorphological research. Its prime purpose is to act as an aide memoire containing information essential for efficient fieldwork. One fundamental assumption made in compiling this manual is that the user is familiar with at least the essentials of the techniques that he proposes to employ. However, where possible sufficient information has been included to refresh the user’s memory on the basics of the various techniques.

Цѣль предлагаемой маленькой книжечкм—научить изслѣдовать и опредѣлять минералы съ помощью простыхъ физическихъ и химическихъ испытаній. Потребность въ такомъ руководствѣ чун-ствуется въ настоящее время и въ высшихъ учебныхъ заведеніяхъ, и въ среднихъ школахъ, и въ народныхъ университетахъ, и па популярныхъ естественно-научныхъ курсахъ, устраиваемыхъ обществами любителей естествознанія *), и въ такъ называемыхъ „кружкахъ саморазвитія", и при самостоятельныхъ занятіяхъ отдѣльныхъ любителей природы. Въ настоящее время дѣло обстоять такимъ образомъ, что, имѣя даже» въ рукахъ удовлетворительный опредѣлитель въ родѣ „Таблицъ для опредѣленія минераловъ" Кобелля, лица, не знакомыя съ иностранными языками, все же не могутъ приступить къ опредѣленію но нему того или иного минерала но неимѣнію чисто практическихъ указаній, какъ это сдѣлать. <...>

Книга знакомит с основными принципами современной гидромеханизации, а также дает описание оборудования и условий применения передвижных гидроустановок на тракторах ЧТЗ с газогенераторными двигателями.
Народный комиссар тяжелой промышленности товарищ Л.М. Каганович в своем приказе № 249 от 11 июля 1938 г. определил гидромеханизацию, как основной вид механизации разработки россыпей, позволяющий увеличить добычу золота в короткое время.

For any oilfield analysis, it is necessary to understand how to calculate areas, volumes and capacities. Fortunately, areas and capacities of tubing and casing are in most field handbooks and in the engineering tables of this book. Most readers of this document will remember how to calculate areas and volumes from grade school, so only a brief review is presented here.
The engineering tables at the back of this book provide all the necessary data to determine well capacities quite easily. The first few sample problems are solved manually to show how the tables were generated. Thereafter, the tables will be used as much as possible to simplify the problem solving. Understanding how the data was generated will make the calculations more meaningful and the tables easier to use. In any case, a clear understanding of the basic principles is necessary before proceeding as subsequent concepts will build on prior ones. <...>