Добрый день, Коллеги. Важное сообщение, просьба принять участие. Музей Ферсмана ищет помощь для реставрационных работ в помещении. Подробности по ссылке
Milestones mark great events: walking on the moon, analyzing rocks on Mars, flying a self-propelled, heavier-than-air machine, using a Bunsen burner for flame atomic spectrometry, and perhaps employing an atmospheric pressure plasma mass spectrometry as an ion source for solution mass spectrometry. Yes, inductively coupled plasma mass spectrometry (ICP-MS) ranks among the milestone inventions of spectrochemical analysis during the 20th century.
The borates are among the most interesting of the world's industrial minerals, having been known and used since the earliest recorded history, first for precious metal working and later in ceramics. They are an unusually large grouping of minerals, but the number of commercially important borates is limited, and their chemistry and crystal structure are both unusual and complex. There are only a few large deposits, with many smaller formations, and the number of noncommercial occurrences in other rocks or brines is very large.
Lithium is one of the most interesting of the industrial minerals, occurring primarily in the unusual lithium pegmatites or in the very few high-lithium brine deposits. Many of the lithium pegmatites contain separate masses of different minerals (i.e. they are highly zoned), with the crystal size often being very large, such as up to 1–14 m long. There may be as many as 13 distinct and separate massive zones of single predominant minerals in the pegmatite, including up to six different lithium mineral zones, and several zones with other rare elements such as tantalum, niobium, tin, tungsten, cesium and rubidium.
1.2 Prior to September 1999 the estimation and reporting of Coal Resources and Coal Reserves in Australia were prescribed by the "Australian Code for Reporting Identified Coal Resources and Reserves (February 1986)". This code was ratified by the Government Geologists’ Conference in April 1986 and appended to the "Australasian Code for Reporting of Identified Mineral Resources and Ore Reserves" (The JORC Code), prepared by the Joint Ore Reserve Committee (JORC) in February 1989. The JORC Code was subsequently revised in 1992 and 1996.
At the start of the twenty-first century, the demand for clean potable water is increasing at a greater rate due in part to a growing population. Additionally, societies are being forced to evaluate impacts on current and future water supplies as a result of energy and mineral development and climate changes. These evaluations include a determination of the quantity and quality of the groundwater resource.
Руководство по ведение топографо-геодезической документации составлено центральной космоаэрогеологической экспедицией /партия 17/ Производственного геологического объединения по региональному изучение геологического строения территории страны "Азрогеология" во исполнение приказа Министерства геологии СССР В 158 от 5.04.74г. и предназначено для организаций Министерства геологии СССР выполняемых топографо-геодезические работы. В Руководстве приведены общие положения по ведение и оформление технической документации полевых и камеральных топографо-геодезических работ. При составлении Руководства учтены существующие формы технической документации, а такие предложения и замечания организаций Министерства геологии СССР и Главного Управления геодезии и карго- I графим при Совете Министров СССР.
A rock you might hold in your hand tomorrow could contain evidence of a world once filled with dinosaurs or a continent once underwater. It is, in fact, from the study of rocks, and the fossils which they sometimes contain, ” that we have been able to learn all of what we know about the Earth’s past — such things as how long it takes a river to form a valley or a volcano to build . a 5,000 foot cone; when the Rocky Mountains were formed; and when the first forms of life appeared on the planet. This is a handbook for the identification of rocks, minerals, and fossils. It is designed for people, young and old, who want to learn how to collect and identify rocks and minerals — what tools are needed, what maps, where to collect, how to categorize and file specimens. Two new, easy-to-follow keys — created especially for this book— enable the collector to identify the Earth’s common rocks and minerals by following a few simple steps. <...>
За последнее десятилетие не было издано ни одного руководства по измерению искривления разведочных скважин. Между тем вышедшие ранее руководства и инструкции не удовлетворяют возросшим требованиям геолого-разведочной службы. В настоящем руководстве систематизирован опыт измерения кривизны скважин и борьбы с искривлением, описанный в отечественной литературе, и собственный опыт автора. Здесь рассматриваются не только методы измерения кривизны скважин, но и причины, вызывающие искривления, а также меры, предупреждающие это явление, способы исправления искривлении скважин и искусственное искривление их.
В настоящем "Руководстве" приведены краткие сведения по геохимии и минералогии урана, о радиоактивности и типах аппаратуры, применяемой для ее измерения») при проведении массовых поисков; описаны приемы работ с радиометрической аппaратурой. Приведены сведения о промышленно-генетических типах месторождений урана; описан комплекс методов, применяемых при проведении массовых поисков. Разработана документация и интерпретация радиометрических работ, проектирование, планирование, отчетность и приемка полевых материалов. Рассмотрены вопросы техники безопасности при работе с радиоактивными источниками. "Руководство" рассчитано на непосредственных исполнителей радиометрических работ и для лиц, осуществлящих геолого-методическое руководство