A Glossary for GEUS Publications: Spelling and Usage of Troublesome Words and Names Made Easy
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The Geology of the Enosburg Area, Vermont
THE GEOLOGY OF THE ENOSBURG AREA, VERMONT By JOlIN G. DENNIS VERMONT GEOLOGICAL SURVEY CHARLES G. DOLL, State Geologist Published by VERMONT DEVELOPMENT DEPARTMENT MONTPELIER, VERMONT BULLETIN No. 23 1964 TABLE OF CONTENTS PAGE ABSTRACT 7 INTRODUCTION ...................... 7 Location ........................ 7 Geologic Setting .................... 9 Previous Work ..................... 10 Method of Study .................... 10 Acknowledgments .................... 10 Physiography ...................... 11 STRATIGRAPHY ...................... 12 Introduction ...................... 12 Pinnacle Formation ................... 14 Name and Distribution ................ 14 Graywacke ...................... 14 Underhill Facics ................... 16 Tibbit Hill Volcanics ................. 16 Age......................... 19 Underhill Formation ................... 19 Name and Distribution ................ 19 Fairfield Pond Member ................ 20 White Brook Member ................. 21 West Sutton Slate ................... 22 Bonsecours Facies ................... 23 Greenstones ..................... 24 Stratigraphic Relations of the Greenstones ........ 25 Cheshire Formation ................... 26 Name and Distribution ................ 26 Lithology ...................... 26 Age......................... 27 Bridgeman Hill Formation ................ 28 Name and Distribution ................ 28 Dunham Dolomite .................. 28 Rice Hill Member ................... 29 Oak Hill Slate (Parker Slate) .............. 29 Rugg Brook Dolomite (Scottsmore -
Christie's Presents Jewels: the Hong Kong Sale
FOR IMMEDIATE RELEASE October 28, 2008 Contact: Kate Swan Malin +852 2978 9966 [email protected] CHRISTIE’S PRESENTS JEWELS: THE HONG KONG SALE Jewels: The Hong Kong Sale Tuesday, December 2 Christie’s Hong Kong Hong Kong – Christie’s announces the fall sale of magnificent jewellery, Jewels: The Hong Kong Sale, which will take place on December 2 at the Hong Kong Convention and Exhibition Centre. This sale features an exquisite selection of over 300 extraordinary jewels across a spectrum of taste and style, from masterpieces of the Belle Époque to contemporary creations, and from the rarest of white and coloured diamonds to important coloured stones. COLOURLESS DIAMONDS Leading the auction is a rare pair of D colour, Flawless diamonds weighing 16.11 and 16.08 carats (illustrated right, estimate: HK$40,000,000-60,000,000 / US$5,000,000-8,000,000). These marvellous stones are also graded ‘Excellent’ for polish, symmetry and cut grade, making them exceedingly rare for their superb quality. Classified as Type IIa, these diamonds are the most the chemically pure type of diamonds known, with no traces of the colorant nitrogen. The absence of this element, seen in 98% of diamonds, gives these stones a purity of colour and degree of transparency that is observed only in the finest white diamonds. The modern round brilliant cut is the diamond’s most basic and popular shape, as it allows the potential for the highest degree of light return. But more importantly, the round diamond sustains the highest value as its production requires riddance of the greatest amount of diamond rough. -
The Red Diamond
The Red Diamond John Fitzgerald Rob Floyd The Red Diamond Text and image copyright © John Fitzgerald and Rob Floyd 2012 Thalassa by Louis MacNeice is reproduced by kind permission of David Higham literary, film and TV agents. The authors would also like to thank Penguin Books for permission to quote from King Arthur and His Knights of the Round Table by Roger Lancelyn Green, and Colin Wilson for the phrase, ‘Imagination is the Herald of Change’. Contents Welcome The Sulphurous Heart Seekers in the Sunrise Britain is Our Playground Daughters of the Revolution The Arch of Constantine The Lantern Bearer Temenos The Mind and the World The Room of the Golden Dance Glittering Prize Rebel Angels Useful Idiots Panache, Power and Pride Visions and Ruins The God Abandons Antony The Red Diamond The Far Wall Welcome Man is in love with what abandons him. That’s the starting point of every quest. Meister Eckhart ******* Hello, thank you and welcome to The Red Diamond. We hope it stirs your imaginations and that you enjoy it in every way. The Red Diamond is essentially an Art Book, with Rob’s illustrations playing as central a role in the story’s unfolding as does my text. Our intent has not been so much to say, ‘this happened here, that happened there and here’s the picture to prove it’, but rather to allow words and pictures to come together in the hope of creating new contemplative spaces – evocative spaces – spaces of growth, possibility and playful creative change. The text tends therefore to concentrate more on atmosphere and mood than the adoption of a purely realistic approach to the story’s development. -
Compilation of Reported Sapphire Occurrences in Montana
Report of Investigation 23 Compilation of Reported Sapphire Occurrences in Montana Richard B. Berg 2015 Cover photo by Richard Berg. Sapphires (very pale green and colorless) concentrated by panning. The small red grains are garnets, commonly found with sapphires in western Montana, and the black sand is mainly magnetite. Compilation of Reported Sapphire Occurrences, RI 23 Compilation of Reported Sapphire Occurrences in Montana Richard B. Berg Montana Bureau of Mines and Geology MBMG Report of Investigation 23 2015 i Compilation of Reported Sapphire Occurrences, RI 23 TABLE OF CONTENTS Introduction ............................................................................................................................1 Descriptions of Occurrences ..................................................................................................7 Selected Bibliography of Articles on Montana Sapphires ................................................... 75 General Montana ............................................................................................................75 Yogo ................................................................................................................................ 75 Southwestern Montana Alluvial Deposits........................................................................ 76 Specifi cally Rock Creek sapphire district ........................................................................ 76 Specifi cally Dry Cottonwood Creek deposit and the Butte area .................................... -
Subsurface Geology of Cenozoic Deposits, Gulf Coastal Plain, South-Central United States
REGIONAL STRATIGRAPHY AND _^ SUBSURFACE GEOLOGY OF CENOZOIC DEPOSITS, GULF COASTAL PLAIN, SOUTH-CENTRAL UNITED STATES V U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 1416-G AVAILABILITY OF BOOKS AND MAPS OF THE U.S. GEOLOGICAL SURVEY Instructions on ordering publications of the U.S. Geological Survey, along with prices of the last offerings, are given in the current-year issues of the monthly catalog "New Publications of the U.S. Geological Survey." Prices of available U.S. Geological Survey publications re leased prior to the current year are listed in the most recent annual "Price and Availability List." Publications that may be listed in various U.S. Geological Survey catalogs (see back inside cover) but not listed in the most recent annual "Price and Availability List" may no longer be available. Reports released through the NTIS may be obtained by writing to the National Technical Information Service, U.S. Department of Commerce, Springfield, VA 22161; please include NTIS report number with inquiry. Order U.S. Geological Survey publications by mail or over the counter from the offices listed below. BY MAIL OVER THE COUNTER Books Books and Maps Professional Papers, Bulletins, Water-Supply Papers, Tech Books and maps of the U.S. Geological Survey are available niques of Water-Resources Investigations, Circulars, publications over the counter at the following U.S. Geological Survey offices, all of general interest (such as leaflets, pamphlets, booklets), single of which are authorized agents of the Superintendent of Docu copies of Earthquakes & Volcanoes, Preliminary Determination of ments. Epicenters, and some miscellaneous reports, including some of the foregoing series that have gone out of print at the Superintendent of Documents, are obtainable by mail from ANCHORAGE, Alaska-Rm. -
Lab 2 – Mineral Properties and Non-Silicate Minerals
LAB 2: MINERAL PROPERTIES AND NON-SILICATE MINERALS Lab Structure Yes – review concepts from Labs 1 and 2 in preparation Recommended additional work for Test 1 Required materials Mineral ID kit, Mineral Kits 1 and 2, pencil Learning Objectives After reading this chapter, completing the exercises within it, and answering the questions at the end, you should be able to: • Describe mineral lattices and explain how they influence mineral properties. • Categorize minerals into groups based on their compositions. • Describe some of the important techniques for identifying minerals. • Identify and describe the physical properties of a range of non-silicate minerals in hand sample. • Discuss the economic uses of non-silicate minerals. Key Terms • Cation • Phosphate • Anion • Colour • Silicate • Streak • Non-silicate • Lustre • Native element • Hardness • Sulphide • Crystal habit • Oxide • Cleavage • Hydroxide • Fracture • Sulphate • Conchoidal fracture • Carbonate • Specific gravity • Halide Minerals are all around us: the graphite in your pencil, the salt on your table, the plaster on your walls, and the trace amounts of gold in your computer. Minerals can be found in a wide variety of consumer products including paper, medicine, processed foods, cosmetics, electronic devices, and many more. And of course, everything made of metal is also derived from minerals. 49 | Lab 2: Mineral Properties and Non-Silicate Minerals As defined in the introductory chapter, a mineral is a naturally occurring combination of specific elements arranged in a particular repeating three-dimensional structure (Figure I4). “Naturally occurring” implies that minerals are not artificially made. Many minerals (e.g., diamond) can be made in laboratories, but if they can also occur naturally, they still qualify as minerals. -
Lab 2: Mineralogy
Lab 2: Mineralogy Reading Understanding Earth, Ch. 3, and Appendix 4 Objectives • To learn how minerals are classified • To learn the common properties of mineral groups • To identify common minerals found in the Earth’s crust Introduction The crust of the Earth is made up of a variety of different rocks. Each type of rock is formed from an assemblage of minerals. Minerals are the basic "building blocks" of rocks, and the recognition of common minerals and rocks is an essential part of the study of geology. A mineral is defined as a chemical element or compound that is a naturally-occurring crystalline solid and is formed as a result of inorganic processes. The terms "rock" and "mineral" are often erroneously used interchangeably. It is important, therefore, to emphasize the key differences between these materials. A mineral is a substance formed by nucleation and growth in an “orderly, three dimensional array.” It is relatively continuous and homogeneous, with a set chemical composition or range of compositions. A rock is an aggregate of minerals with possible wide variations in chemical compositions and crystal structures. A mineral can be represented by a chemical formula, while a rock cannot. Figure 2.1 The difference between a mineral and a rock. Left: The mineral garnet. Right: The rock eclogite, made up of garnet and clinopyroxene. Although there are over 3000 minerals that have been discovered, fewer than 30 make up the bulk of the earth's crust. These are called the rock-forming minerals, and are the ones you are most likely to encounter in the rocks around you. -
Geodynamics If the Entire Solid Earth Is Viewed As a Single Dynamic
http://www.paper.edu.cn Geodynamic Processes and Our Living Environment YANG Wencai, P. Robinson, FU Rongshan and WANG Ying Geological Publishing House: 2001 Geophysical System Yang Wencai, Institute of Geology, CAGS, China Key words: Geophysics, geodynamics, kinetics of the Earth, tectonics, energies of the Earth, driving forces, applied geophysics, sustainable development. Contents: I. About geophysical system II. Kinetics of the Earth III. About plate tectonics and plume tectonics IV. The contents in the topic V. Energies for the dynamic Earth VI. Driving Forces of Plate Tectonics VII. Geophysics and sustainable development of the society I. About geophysical system Rapid advance of sciences during the second half of the twentieth century has enabled man to make a successful star in the exploration of planetary space. The deep interior of the Earth, however, remains as inaccessible as ever. This is the realm of solid-Earth geophysics, which still mainly depends on observations made at or near the Earth's surface. Despite this limitation, a major revolution in knowledge of the Earth's interior has taken place over the last forty years. This has led to a new understanding of the processes which occur within the Earth that produce surface conditions outstandingly different from those of the other inner planets and the moon. How has this come about? It is mainly the results of the introduction of new experimental and computational techniques into geophysics. Geophysics as a major branch of the geosciences has been discussed in Topic 6.16.1. Theoretically and traditionally the geophysical system correlates to physical system, but specified st study the solid Earth, containing sub-branches such as gravitation and Earth-motion correlated with 转载 1 中国科技论文在线 http://www.paper.edu.cn mechanics, geothermics correlated with heat and thermics, seismology with acoustics and wave theory, geoelectricity and geomagnetism. -
Part 629 – Glossary of Landform and Geologic Terms
Title 430 – National Soil Survey Handbook Part 629 – Glossary of Landform and Geologic Terms Subpart A – General Information 629.0 Definition and Purpose This glossary provides the NCSS soil survey program, soil scientists, and natural resource specialists with landform, geologic, and related terms and their definitions to— (1) Improve soil landscape description with a standard, single source landform and geologic glossary. (2) Enhance geomorphic content and clarity of soil map unit descriptions by use of accurate, defined terms. (3) Establish consistent geomorphic term usage in soil science and the National Cooperative Soil Survey (NCSS). (4) Provide standard geomorphic definitions for databases and soil survey technical publications. (5) Train soil scientists and related professionals in soils as landscape and geomorphic entities. 629.1 Responsibilities This glossary serves as the official NCSS reference for landform, geologic, and related terms. The staff of the National Soil Survey Center, located in Lincoln, NE, is responsible for maintaining and updating this glossary. Soil Science Division staff and NCSS participants are encouraged to propose additions and changes to the glossary for use in pedon descriptions, soil map unit descriptions, and soil survey publications. The Glossary of Geology (GG, 2005) serves as a major source for many glossary terms. The American Geologic Institute (AGI) granted the USDA Natural Resources Conservation Service (formerly the Soil Conservation Service) permission (in letters dated September 11, 1985, and September 22, 1993) to use existing definitions. Sources of, and modifications to, original definitions are explained immediately below. 629.2 Definitions A. Reference Codes Sources from which definitions were taken, whole or in part, are identified by a code (e.g., GG) following each definition. -
IASC Workshop on the Dynamics and Mass Budget of Arctic Glaciers
IASCIASC Workshop Workshop onon the the dynamics dynamics and and mass mass budgetbudget of of Arctic Arctic glaciers glaciers AbstractsAbstracts andand Programme Programme IASCIASC Workshop, Workshop, 26-28 26-28 February February 2013, 2013, ObergurglObergurgl (Austria) (Austria) IASC Network on Arctic Glaciology IASC Workshop on the dynamics and mass budget of Arctic glaciers Abstracts and program IASC Workshop & Network on Arctic Glaciology annual meeting, 26-28 February 2013, Obergurgl (Austria) Organised by C.H. Tijm-Reijmer Network on Arctic Glaciology ISBN: 978-90-393-6003-3 Contents Preface ............................................. 5 Program ............................................ 6 Posters ............................................. 10 Participants ......................................... 11 Minutes of the Open Forum Meeting ........................ 13 Report of the Open Session on Tidewater Glaciers ............. 17 Abstracts ........................................... 20 Seasonal velocities of eight major marine-terminating outlet glaciers of the Greenland ice sheet from continuous in situ GPS instruments . 20 A.P. Ahlstrøm, S.B. Andersen, M.L. Andersen, H. Machguth, F.M. Nick, I. Joughin, C.H. Reijmer, R.S.W. van de Wal, J.P. Merryman Boncori, J.E. Box, M. Citterio, D. van As, R.S. Fausto and A. Hubbard Homogenization of a long term mass balance record . 20 L.M. Andreassen Projections of 21st century contribution of Alaska glaciers to rising sea level 21 A.C. Beedlow V. Radic,´ A.K. Bliss, R. Hock, A.A Arendt, J.L. Rich, D.F. Hill, D.F., S.E Calos, and J.G. Cogley Five consecutive years of mass balance observations to understand glacier reaction to present climate change (Austre Lovénbreen, Spitsbergen, 79◦N) 22 E. Bernard, F. Tolle, J.M. Friedt, Ch. Marlin and M. -
A Fundamental Precambrian–Phanerozoic Shift in Earth's Glacial
Tectonophysics 375 (2003) 353–385 www.elsevier.com/locate/tecto A fundamental Precambrian–Phanerozoic shift in earth’s glacial style? D.A.D. Evans* Department of Geology and Geophysics, Yale University, P.O. Box 208109, 210 Whitney Avenue, New Haven, CT 06520-8109, USA Received 24 May 2002; received in revised form 25 March 2003; accepted 5 June 2003 Abstract It has recently been found that Neoproterozoic glaciogenic sediments were deposited mainly at low paleolatitudes, in marked qualitative contrast to their Pleistocene counterparts. Several competing models vie for explanation of this unusual paleoclimatic record, most notably the high-obliquity hypothesis and varying degrees of the snowball Earth scenario. The present study quantitatively compiles the global distributions of Miocene–Pleistocene glaciogenic deposits and paleomagnetically derived paleolatitudes for Late Devonian–Permian, Ordovician–Silurian, Neoproterozoic, and Paleoproterozoic glaciogenic rocks. Whereas high depositional latitudes dominate all Phanerozoic ice ages, exclusively low paleolatitudes characterize both of the major Precambrian glacial epochs. Transition between these modes occurred within a 100-My interval, precisely coeval with the Neoproterozoic–Cambrian ‘‘explosion’’ of metazoan diversity. Glaciation is much more common since 750 Ma than in the preceding sedimentary record, an observation that cannot be ascribed merely to preservation. These patterns suggest an overall cooling of Earth’s longterm climate, superimposed by developing regulatory feedbacks -
Structural Diagenesis in Carbonate Rocks As Identified in Fault
minerals Article Structural Diagenesis in Carbonate Rocks as Identified in Fault Damage Zones in the Northern Tarim Basin, NW China Guanghui Wu 1,2,*, En Xie 3, Yunfeng Zhang 1, Hairuo Qing 2, Xinsheng Luo 3 and Chong Sun 3 1 School of Geoscience and Technology, Southwest Petroleum University, Chengdu 610500, China; [email protected] 2 Department of Geology, University of Regina, Regina, SK S4S 0A2, Canada; [email protected] 3 PetroChina Tarim Oilfield Company, Korla 841000, China; [email protected] (E.X.); [email protected] (X.L.); [email protected] (C.S.) * Correspondence: [email protected] Received: 5 May 2019; Accepted: 22 May 2019; Published: 13 June 2019 Abstract: The identification of structural diagenesis and the reconstruction of diagenetic paragenesis in fault damage zones is important for understanding fault mechanisms and fluid flow in the subsurface. Based on the examination of core and sample thin section data, we deciphered the diagenetic parasequence and their fault controls for Ordovician carbonates in the northern Tarim intracratonic basin in NW China (Halahatang area). In contrast to the uniform nature of diagenesis observed in country rocks, there is a relatively complicated style of compaction and pressure solution, multiple fracturing, and cementation and dissolution history along the carbonate fault damage zones. The relative paragenetic sequence of the structure related diagenesis suggests three cycles of fracture activities, following varied fracture enlargement and dissolution, and progressively weaker calcite cementation. These processes of structure related diagenesis are constrained to the fault damage zones, and their variation is affected by the fault activities.