The Elements of economic geology

Bibliographic data

Monograph

Identifikator:: 1773832379

URN:: urn:nbn:de:zbw-retromon-172798

Document type:: Monograph

Author:: Gregory, John W. http://d-nb.info/gnd/11683014X

Title:: The Elements of economic geology

Place of publication:: London

Publisher:: Methuen

Year of publication:: 1928

Scope:: XIV, 312 S.; graph. Darst.

Digitisation:: 2021

Collection:: Economics Books

Usage license:: Get license information via the feedback formular.

Index

Document type:: Monograph

Structure type:: Index

Title:: Subject index

Collection:: Economics Books

SUBJECT INDEX 311 tion of, 217; secondary concen trations, 216-7 ; supplies of, 217 ; value in agriculture, 214. Propylitization, 26, 36-7, 45. Prospecting, 4-7; tin-dish, 3 Varieties of, 8-10. : Pyritic masses, 86-90, 134. Pyrobitumen, 204. RAKE Vein, 8. Rand Banket, 57-63. Reef, definition of; 12-13. Replacements, 16, 33, 37, 45-8 82, 85-90, 92-4, 102-5, 126-7, 134-44. Road metals, 182-4; adherence tc bitumen, 183; macadam, 182; tests of, 183-4. Ruby, 165 ; Cape ruby, 167. SADDLE lodes, 9, 10-11, 29, 37, 44. Salt deposits, 206-17; bar theory, 210; Caspian water, analyses, 211; composition of Jordan and Dead Sea water, 207 ; composi: tion of sea-water, 206; concen: tration in salt lakes, 207; Ger: man salt fields, 208-9, 215-7: great thickness of, 210-1; intru- sive salt deposits, 210, 214; potash salts, 214-7. Salt domes, 210, 212-3, 282, 287. Sand, 191, 194. Sapphire, 163. Scheelite, 79. Secondary enrichments, 31, 37, 51. 82, 84, 90-3. . Segregation, chief mineral deposits due to, 33. Selenite, 30. Shoots of ore, 30, 43, 81. Silt, 191. Silver, 110-2; chief producing countries, 110; Cobalt field. 110-2; price of. 110; qualities. 110. Slickensides, 8. Soil, the, 190-6; clay, 191-2, 194; colour of, 195; composition of, 192; constitution of, 191; crop requirements, 193 ; definition and function, 190 ; dry farming, 194 ; lime, effect of, 191 ; mulch. effect of, 195 ; nitrogen in, 193; nitro- gen essential to most plants, 197 ; phosphorus in, 192; potash in, 192; sand, 191, 104; sedentery soil, 190; silt, 191; sodium car- bonate in, 192-5; soil surveys, 195-6. Texture of, 194 ; trans- ported, 190; water capacity, 194. Sperrylite, 65. Staffelite, 203. Step lodes, 8. Stockwork, 28 TELLURIDES, 47, 48, 49. Tin lodes, 21. Tin, ores of, 71-8 ; alluvial deposits, 71; associated minerals, 73 ; fissure-lodes and brecciated ores of Bolivia, 76; historic import- ance, 71; pneumatolytic origin, 71, 73, 76, 77; pseudo-bedded ores, 74, 75; residual ores, 75 ; variations in price of, 78 ; world distribution of, ¥2. Titaniferous magnetites, 132. Topaz, 166. Torsion balance, application of, 51. Tungsten, ores of, 78-9; distribu- tion of, 78-9; price of, 79; use of, 78. VARIOLITE in gold ores, 48, 52. Veins, varieties of, 8. Veinstones, 12. Verticals in gold ores, 40. Volcanic rocks with ores, 42-3, 48, 52, 56, 84, 86, 94, 102, 143. Vugg, 11. WATERS, 22; depth of, 22-3; juvenile, 22; magmatic, 22; plutonic, 22, 52, 95; sea-water, gold in, 35. Water Supply, 219-37; ‘‘ Artesian ”’ wells, 231; Australian flowing wells, 234-5; connate water, 220 ; dew-ponds, 219; dumb-wells, 229; exhaustion, cone of, 227; evaporation, 223; gas-pressure, 233; hot springs, 221-2; imbi- bition, 228; impurity in cities, 220: juvenile, 220-2: London

Access restriction

Copyright

fullscreen: The Elements of economic geology

Monograph

Index

Table of contents

Download

Monograph

Index

This page

Image fragment

Citation links

Citation recommendation