Previous studies of the availability of lithium for use in batteries to power electric vehicles (EVs) have reached the generally encouraging conclusion that resources are sufficient to meet growing demand for the remainder of the 21st century. However, these surveys have not looked past estimates of lithium resource to the geological constraints on deposit size and composition that will allow the resources to be converted to reserves from which lithium can be produced economically. In this survey, we review the relevant geological features of the best characterized pegmatite, brine and other types of lithium deposits and compare their potential for large-scale, long-term production. The comparison shows that the average brine deposit (1.45 Mt Li) is more than an order of magnitude larger than the average pegmatite deposit (0.11 Mt Li) and that brine deposits, especially the large Atacama (Chile) and Uyuni (Bolivia) deposits, have a much larger total lithium resource (21.6 Mt Li).

China is an emerging superpower, with a huge demand for raw materials and mineral resources that are being used to increase the standard of living conditions for its residents and bolster its surge forward in the global economy. To enable this rapid growth, China is also undertaking an education revolution with the help of experts from around the world in many different fields of endeavour.

Оловянно-вольфрамовое месторождение Иультин расположено в центральной части Чукотского полуострова. Оно относится к кварцевому типу касситерит-кварцевой формации, т. е. к группе месторождений, наиболее широко распространенных и в Советском Союзе, и во всем мире.

Статья посвящена исследованию новых возможностей пространственной трехмерной интерполяции методами машинного обучения для решения традиционных геологических задач с недостатком данных. Впечатляющий успех моделей машинного обучения определяется богатыми возможностями и простотой в использовании, позволяющими воспроизводить чрезвычайно сложные зависимости за счет способности самообучаться.

В брошюре рассказывается о профессии камнетеса-гранитчика. Излагается технология добычи гранитных блоков, тески и полировки гранитных изделий, передовые приемы и методы работы камнетеса-гранитчика при обработке деталей сложного профиля, организации труда, основные положения по охране труда и технике безопасности. Указываются основные условия оплаты труда камнетеса-гранитчика и нормирования.
Брошюра рассчитана на начинающих рабочих и рабочих камнетесов-гранитчиков, желающих повысить свою квалификацию.

Molybdenum (Mo) is a transition metal with an atomic number of 42 and a relative atomic mass of 95.95. Important isotopes are 95Mo, 96Mo, and 98Mo. Molybdenum has a high melting point of 2623
C and one of the lowest coefficients of thermal expansion among commercially used metals. It readily forms hard, stable carbides in alloys and is widely used in steel alloys, including high-strength alloys and superalloys. Molybdenum was discovered in 1781 by Peter Jacob Hjelm and the name is from the Greek “molybdos,” which means “lead,” because it was often confused

with lead. Details on the chemistry and uses of molybdenum can be found at www. rsc.org/periodic-table/element/42/molybdenum.

The basic purpose of this book is to present an analysis of geological field techniques which will function as a working guide for the approach, pursuit, and solution of geological problems, particularly those of mining geology. It is the author’s hope that not only will the book acquaint students with proper field procedures, but that it also will afford a convenient reference for practicing geologists.