 | | Journal (article/letter/editorial) |
| sulfides and Pt–Fe alloys in the Freetown Layered Complex, Sierra Leone John F. W. Bowles 1 & Saioa Suárez...rocks and saprolite from Horizon B of the Freetown Layered Complex contain platinum-group minerals (PGM)...show progressive weathering (corestones). Ground water passing through the saprolite has transported Pt...Keywords Platinum-group minerals . Freetown intrusion . Sierra Leone . Weathering . Mobility of platinum...and alluvial deposits from the Freetown Layered Intrusion in Sierra Leone, West Africa, since 1926 and |
 | | Journal (article/letter/editorial) |
| platinum-group minerals of the Freetown Layered Complex, Sierra Leone. 1 John F.W. Bowles1, Saioa Suárez2...rivers and river terraces near York, Freetown Peninsula, Sierra Leone have been examined for their platinum-group...primary and placer PGM support the proposal that the Freetown nuggets developed as a result of breakdown of...Keywords: Platinum-group minerals • Freetown Intrusion, Sierra Leone • Alluvial • Nuggets Introduction...Introduction Alluvial PGM in the western hills of the Freetown Peninsula, Sierra Leone, W Africa were first found |
 | | Book |
| study of the properties of minerals in all their complex varietynot only the history of their formation...were among the first metals employed widely for water-pipes and other purposes. Copper and later iron...minerals, and of magnesium from magnesite and sea water, employed as light alloys in the construction of...ionic radii of the corresponding ions. For more complex compounds the lattice energy can be calculated...1 2 3 oC 0N 4 5 Cr 8 s ,se Catio ns in complex an io ns 6 Ionic charge FIG. 2. Jonie radii |
 | | Book (edition) |
| environment encompasses rocks and soil, air and water, such factors as light and temperature, and other...glaciers. The case study considering glaciers as a water source has been expanded to explore more specifically...les of such retreating of alpine glaciers for water supplies in many areas. Chapter 10 This chapter...reservoirs exceed human water consumption worldwide, and evidence that use of desalinated water may cause deficiency...persistence of bioaccumulative pesticides. New data on water quality in wells are presented. Chapter 18 Data |
 | | Book (edition) |
| Present S Types of Mass Wasting 197 Glaciers as a Water Source Weather, Climate, and Coastal Dynamics Present...Supply and Demand CHAPTER 10 Water as a Resource 230 233 The Global Water Budget 234 Fluid Storage and...Factors in Water Availability 237 Consequences of Groundwater Withdrawal Lowering the Water Table 238...243 Hard Water 244 Water Use, Water Supply 245 General U.S. Water Use 245 Surface Water versus Ground...Ground Water as Supply 245 LIVING GEOLOGY BOX 10: What's in the Water? 246 Case Studies in Water Consumption |
 | | Book (edition) |
| Resources, People, and Standards of Living 11 Water Asa Resource 220 Soil Classification 250 Lateritic...Formation Erosion from Farmland Hard Water 229 Surface Water Versus Groundwater As Supply Compaction...Regional Variations in Water Use Industrial Versus Agricultural Use Extending the Water Supply 237 Conservation...Conservation 237 Interbasin Water Transfer 237 Desalination 240 Summary 242 Terms to Remember 242 242 Suggested...Down the Wind and Water 233 234 Water Use, Water Supply 236 General U.S. Water Use 236 Exercises |
 | | Report (issue) |
| as many as live in New York City) spread over an area almost as large as Texas and California combined...South America and is the third poorest in the western hemisphere. It has achieved the dubious distinction...Amazonian jungle. Geologically this vast lowland area (roughly the size of Texas) is an extension of the...the fastest growing regions, economically. This area boasts a rapidly growing network of roads focused...Venezuela to Tierra del Fuego along the entire western edge of South America, but it reaches its widest |
 | | Book (edition) |
| Supply and Demand Chapter 10 Water as a Resource The Global Water Budget Fluid Storage and Movement:...Other Factors in Water Availability Consequences of Groundwater Withdrawal Lowering the Water Table Compaction...Subsurface Water Sinkholes Karst Water Quality Measures of Water Quality Hard Water Water Use, Water Supply...General U.S. Water Use Surface Water versus Ground Water as Supply Regional Variations in Water Use Extending...Extending the Water Supply Conservation Interbasin Water Transfer Desalination Summary Terms to Remember |
 | | Book (edition) |
| manufacture, the soil on which our food is grown, the water we drink, the air we breathe, and often, even the...EXERCISES SUMMARY 166 KEY TERMS AND CONCEPTS 127 How Big Is the One Hundred-Year Flood? SUMMARY 143 KEY TERMS...Glacial Erosion and Deposition 197 Glaciers as a Water Source 200 Evidence of Climates Past 208 Ice Ages...Projection of Resource Supply and Demand CHAPTER 10 Water as a Resource 225 228 Fluid Storage and Mobility:...Darcy’s Law and Groundwater Flow 232 Other Factors in Water Availability 233 Compaction and Surface Subsidence |
 | | Book (edition) |
| 12 Water as a Resource 196 197 201 Introduction 201 The Hydrologic Cycle—the Global Water Budget...Surface and Subsurface Water 202 Groundwater 203 Surface versus Ground Water as Supply 204 Aquifer Geometry...Perched Water Table 206 Further Effects of Subsurface Water 208 Sinkholes 208 Karst Terranes 208 Water Quality...Quality 208 Measurement of Water Quality 208 Hard Water 209 Some Consequences of Groundwater Withdrawal...Withdrawal 210 Lowering the Water Table 210 Compaction and Surface Subsidence 211 Saltwater Intrusion 212 Other |
 | | Book (volume) |
| irrigation have led to salinization, water-logging, eutrophication of major water bodies, dangerous declines of...climate change. Global warming and associated complex and poorly understood shifts in precipitation extremes...sponge-like porosity and its enormous internal surface area. That same fistful of soil may actually consist...exchanged, water percolates through the soil’s intricate passages, plant roots extract water and transmit...from the air and synthesize it with soil-derived water to form the primary compounds of life. Oxygen emitted |
 | | Report (issue) |
| processed Landsat scene of the Washington, D.C. (U.S.A.) area magnified to about 1:200,000 84 2 Equivalent image...heavy crude and tar sand reserves 151 Lloydminster-area heavy oils 151 Known oil shale resources of the...Twenty-first Century WA TER AND PEOPLE Philippine Water Resources Policies: An Appraisal 213 Angel A. Alejandrino...Administrative Implications of the Hydrological Cycle and Water-related Resources Facing the Twenty-first Century...1900 to 1976 242 Seismic zoning map of Peru 243 Area seismic risk predictions for the Department of Lima |
