Geological Observations on South America

About this eBook

Author

Darwin, Charles, 1809-1882

Language

English

LoC Class

QE: Science: Geology

Subject

Mollusks, Fossil -- South America

Category

Text

eBook-No.

3620

Project Gutenberg

https://www.gutenberg.org/ebooks/3620

Release Date

January 1, 2003

Copyright

Public domain in the USA.

Contents

1. 1.Geological Observations on South America — By Charles Darwin — CONTENTS
2. 2.EDITORIAL NOTE.
3. 3.DETAILED TABLE OF CONTENTS.
4. 4.GEOLOGICAL OBSERVATIONS ON SOUTH AMERICA
5. 5.CRITICAL INTRODUCTION.
6. 6.CHAPTER I. ON THE ELEVATION OF THE EASTERN COAST OF SOUTH AMERICA. — SOUTHWARD OF THE PLATA. — DIAGRAM 1. SECTION OF STEP-FORMED PLAINS SOUTH OF NUEVO GULF. — (DIAGRAM 2. SECTION OF PLAINS IN THE BAY OF ST. GEORGE. — (DIAGRAM 3. SECTION OF PLAINS AT PORT DESIRE. — (DIAGRAM 4. SECTION OF PLAINS AT PORT S. JULIAN. — (DIAGRAM 5. SECTION OF PLAINS AT THE MOUTH OF THE RIO SANTA CRUZ. — THE VALLEY OF THE R. SANTA CRUZ. — TABLE 1. — TABLE 2. — A SUMMARY OF RESULTS. — GRAVEL FORMATION OF PATAGONIA. — FORMATION OF CLIFFS.
7. 7.CHAPTER II. ON THE ELEVATION OF THE WESTERN COAST OF SOUTH AMERICA. — THE ISLAND OF CHILOE. — VALDIVIA. — CONCEPCION. — COAST NORTH OF CONCEPCION. — VALPARAISO. — VALPARAISO TO COQUIMBO. — COQUIMBO. — (DIAGRAM 8.—SECTION OF PLAIN OF COQUIMBO. — VALLEY OF COQUIMBO. — (FIGURE 10. NORTH AND SOUTH SECTION ACROSS THE VALLEY OF COQUIMBO. — (FIGURE 11. DIAGRAM OF A BAY IN A DISTRICT WHICH HAS BEGUN SLOWLY RISING) — COQUIMBO TO GUASCO. — COPIAPO. — LIMA. — FOSSIL-REMAINS OF HUMAN ART. — A SUMMARY ON THE RECENT ELEVATION OF THE WEST COAST OF SOUTH AMERICA.
8. 8.CHAPTER III. ON THE PLAINS AND VALLEYS OF CHILE:—SALIFEROUS SUPERFICIAL DEPOSITS. — SLOPING TERRACES OF GRAVEL IN THE VALLEYS OF THE CORDILLERA. — FORMATION OF VALLEYS. — SUPERFICIAL SALINE DEPOSITS. — THIN, SUPERFICIAL, SALINE INCRUSTATIONS. — SALT-LAKES OF PATAGONIA AND LA PLATA.
9. 9.CHAPTER IV. ON THE FORMATIONS OF THE PAMPAS. — BUENOS AYRES TO THE RIO COLORADO. — BAHIA BLANCA. — BUENOS AYRES TO ST. FE BAJADA, IN ENTRE RIOS. — PHYTOLITHARIA. — BANDA ORIENTAL. — (FIGURE 16. SECTION OF THE LOWEST PLAIN AT PORT S. JULIAN. — A SUMMARY AND CONCLUDING REMARKS ON THE PAMPEAN FORMATION.
10. 10.CHAPTER V. ON THE OLDER TERTIARY FORMATIONS OF PATAGONIA AND CHILE. — RIO NEGRO. — SAN JOSEF. — NUEVO GULF. — PORT DESIRE. — PORT S. JULIAN. — SANTA CRUZ. — BASALTIC LAVA OF THE S. CRUZ. — EASTERN TIERRA DEL FUEGO. — A SUMMARY ON THE PATAGONIAN TERTIARY FORMATION. — TERTIARY FORMATIONS ON THE WEST COAST. — CHONOS ARCHIPELAGO. — HUAFO. — CHILOE. — (FIGURE 19.) — VALDIVIA: ISLAND OF MOCHA. — CONCEPCION. — COQUIMBO. — (FIGURE 21. SECTION OF THE TERTIARY FORMATION AT COQUIMBO. — COQUIMBO TO COPIAPO. — COAST OF PERU. — CONCLUDING REMARKS. — TABLE 4. — ON THE TEMPERATURE OF THE TERTIARY PERIOD.
11. 11.CHAPTER VI. PLUTONIC AND METAMORPHIC ROCKS:—CLEAVAGE AND FOLIATION. — RIO DE JANEIRO. — THE NORTHERN PROVINCES OF LA PLATA. — MONTE VIDEO. — SOUTHERN LA PLATA. — PATAGONIA. — PSEUDO-DIKES. — FALKLAND ISLANDS. — TIERRA DEL FUEGO. — WEST COAST, FROM THE SOUTHERN CHONOS ISLANDS TO NORTHERN CHILE. — CHILOE, VALDIVIA, CONCEPCION. — CENTRAL AND NORTHERN CHILE. — CONCLUDING REMARKS ON CLEAVAGE AND FOLIATION.
12. 12.CHAPTER VII. CENTRAL CHILE:—STRUCTURE OF THE CORDILLERA. — BASAL STRATA OF THE CORDILLERA. — PASSAGE OF THE ANDES BY THE PORTILLO OR PEQUENES PASS. — THE PORTILLO OR EASTERN CHAIN. — CONCLUDING REMARKS ON THE PORTILLO RANGE. — PASSAGE OF THE ANDES BY THE CUMBRE OR USPALLATA PASS. — THE USPALLATA RANGE. — CONCLUDING REMARKS ON THE USPALLATA RANGE.
13. 13.CHAPTER VIII. NORTHERN CHILE. CONCLUSION. — VALPARAISO TO COQUIMBO. — COPPER MINES OF PANUNCILLO. — COQUIMBO: MINING DISTRICT OF ARQUEROS. — A SECTION EASTWARD, UP THE VALLEY OF COQUIMBO. — COQUIMBO TO GUASCO. — VALLEY OF COPIAPO. — SECOND AXIS OF ELEVATION. — THIRD AXIS OF ELEVATION. — FOURTH AXIS OF ELEVATION (VALLEY OF COPIAPO). — FIFTH AXIS OF ELEVATION (VALLEY OF COPIAPO, NEAR LOS AMOLANAS). — COQUIMBO. — GUASCO. — COPIAPO. — SIXTH AXIS OF ELEVATION (VALLEY OF COPIAPO). — SEVENTH AXIS OF ELEVATION. — VALLEY OF THE DESPOBLADO. — (FIGURE 24.) — ON THE ERUPTIVE SOURCES OF THE PORPHYRITIC CLAYSTONE AND GREENSTONE LAVAS. — IQUIQUE, SOUTHERN PERU. — METALLIFEROUS VEINS. — NOTE.
14. 14.INDEX.

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