Book contents
- Frontmatter
- Contents
- CHAPTER I INTRODUCTION
- CHAPTER II RECENT PERIOD—DANISH PEAT AND SHELL MOUNDS—SWISS LAKE DWELLINGS
- CHAPTER III FOSSIL HUMAN REMAINS AND WORKS OF ART OF THE RECENT PERIOD
- CHAPTER IV POST-PLIOCENE PERIOD: BONES OF MAN AND EXTINCT MAMMALIA IN BELGIAN CAVERNS
- CHAPTER V POST-PLIOCENE PERIOD: FOSSIL HUMAN SKULLS OF THE NEANDERTHAL AND ENGIS CAVES
- CHAPTER VI POST-PLIOCENE ALLUVIUM AND CAVE DEPOSITS WITH FLINT IMPLEMENTS
- CHAPTER VII PEAT AND POST-PLIOCENE ALLUVIUM OF THE VALLEY OF THE SOMME
- CHAPTER VIII POST-PLIOCENE ALLUVIUM WITH FLINT IMPLEMENTS OF THE VALLEY OF THE SOMME—concluded
- CHAPTER IX WORKS OF ART IN POST-PLIOCENE ALLUVIUM OF FRANCE AND ENGLAND
- CHAPTER X CAVERN DEPOSITS, AND PLACE OF SEPULTURE OF THE POST-PLIOCENE PERIOD
- CHAPTER XI AGE OF HUMAN FOSSILS OF LE PUY IN CENTRAL FRANCE AND OF NATCHEZ ON THE MISSISSIPPI, DISCUSSED
- CHAPTER XII ANTIQUITY OF MAN RELATIVELY TO THE GLACIAL PERIOD AND TO THE EXISTING FAUNA AND FLORA
- CHAPTER XIII CHRONOLOGICAL RELATIONS OF THE GLACIAL PERIOD AND THE EARLIEST SIGNS OF MAN'S APPEARANCE IN EUROPE
- CHAPTER XIV CHRONOLOGICAL RELATIONS OF THE GLACIAL PERIOD AND THE EARLIEST SIGNS OF MAN'S APPEARANCE IN EUROPE—continued
- CHAPTER XV EXTINCT GLACIERS OF THE ALPS AND THEIR CHRONOLOGICAL RELATION TO THE HUMAN PERIOD
- CHAPTER XVI HUMAN REMAINS IN THE LOESS, AND THEIR PROBABLE AGE
- CHAPTER XVII POST-GLACIAL DISLOCATIONS AND FOLDINGS OF CRETACEOUS AND DRIFT STRATA IN THE ISLAND OF MÖEN, IN DENMARK
- CHAPTER XVIII THE GLACIAL PERIOD IN NORTH AMERICA
- CHAPTER XIX RECAPITULATION OF GEOLOGICAL PROOFS OF MAN'S ANTIQUITY
- CHAPTER XX THEORIES OF PROGRESSION AND TRANSMUTATION
- CHAPTER XXI ON THE ORIGIN OF SPECIES BY VARIATION AND NATURAL SELECTION
- CHAPTER XXII OBJECTIONS TO THE HYPOTHESIS OF TRANSMUTATION CONSIDERED
- CHAPTER XXIII ORIGIN AND DEVELOPMENT OF LANGUAGES AND SPECIES COMPARED
- CHAPTER XXIV BEARING OF THE DOCTRINE OF TRANSMUTATION ON THE ORIGIN OF MAN, AND HIS PLACE IN THE CREATION
- INDEX
CHAPTER VII - PEAT AND POST-PLIOCENE ALLUVIUM OF THE VALLEY OF THE SOMME
Published online by Cambridge University Press: 29 August 2010
- Frontmatter
- Contents
- CHAPTER I INTRODUCTION
- CHAPTER II RECENT PERIOD—DANISH PEAT AND SHELL MOUNDS—SWISS LAKE DWELLINGS
- CHAPTER III FOSSIL HUMAN REMAINS AND WORKS OF ART OF THE RECENT PERIOD
- CHAPTER IV POST-PLIOCENE PERIOD: BONES OF MAN AND EXTINCT MAMMALIA IN BELGIAN CAVERNS
- CHAPTER V POST-PLIOCENE PERIOD: FOSSIL HUMAN SKULLS OF THE NEANDERTHAL AND ENGIS CAVES
- CHAPTER VI POST-PLIOCENE ALLUVIUM AND CAVE DEPOSITS WITH FLINT IMPLEMENTS
- CHAPTER VII PEAT AND POST-PLIOCENE ALLUVIUM OF THE VALLEY OF THE SOMME
- CHAPTER VIII POST-PLIOCENE ALLUVIUM WITH FLINT IMPLEMENTS OF THE VALLEY OF THE SOMME—concluded
- CHAPTER IX WORKS OF ART IN POST-PLIOCENE ALLUVIUM OF FRANCE AND ENGLAND
- CHAPTER X CAVERN DEPOSITS, AND PLACE OF SEPULTURE OF THE POST-PLIOCENE PERIOD
- CHAPTER XI AGE OF HUMAN FOSSILS OF LE PUY IN CENTRAL FRANCE AND OF NATCHEZ ON THE MISSISSIPPI, DISCUSSED
- CHAPTER XII ANTIQUITY OF MAN RELATIVELY TO THE GLACIAL PERIOD AND TO THE EXISTING FAUNA AND FLORA
- CHAPTER XIII CHRONOLOGICAL RELATIONS OF THE GLACIAL PERIOD AND THE EARLIEST SIGNS OF MAN'S APPEARANCE IN EUROPE
- CHAPTER XIV CHRONOLOGICAL RELATIONS OF THE GLACIAL PERIOD AND THE EARLIEST SIGNS OF MAN'S APPEARANCE IN EUROPE—continued
- CHAPTER XV EXTINCT GLACIERS OF THE ALPS AND THEIR CHRONOLOGICAL RELATION TO THE HUMAN PERIOD
- CHAPTER XVI HUMAN REMAINS IN THE LOESS, AND THEIR PROBABLE AGE
- CHAPTER XVII POST-GLACIAL DISLOCATIONS AND FOLDINGS OF CRETACEOUS AND DRIFT STRATA IN THE ISLAND OF MÖEN, IN DENMARK
- CHAPTER XVIII THE GLACIAL PERIOD IN NORTH AMERICA
- CHAPTER XIX RECAPITULATION OF GEOLOGICAL PROOFS OF MAN'S ANTIQUITY
- CHAPTER XX THEORIES OF PROGRESSION AND TRANSMUTATION
- CHAPTER XXI ON THE ORIGIN OF SPECIES BY VARIATION AND NATURAL SELECTION
- CHAPTER XXII OBJECTIONS TO THE HYPOTHESIS OF TRANSMUTATION CONSIDERED
- CHAPTER XXIII ORIGIN AND DEVELOPMENT OF LANGUAGES AND SPECIES COMPARED
- CHAPTER XXIV BEARING OF THE DOCTRINE OF TRANSMUTATION ON THE ORIGIN OF MAN, AND HIS PLACE IN THE CREATION
- INDEX
Summary
Geological Structure of the Somme Valley.
THE Valley of the Somme in Picardy, alluded to in the last chapter, is situated geologically in a region of white chalk with flints, the strata of which are nearly horizontal. The chalk hills which bound the valley are almost everywhere between 200 and 300 feet in height. On ascending to that elevation, we find ourselves on an extensive table-land, in which there are slight elevations and depressions. The white chalk itself is scarcely ever exposed at the surface on this plateau, although seen on the slopes of the hills, as at b and c (fig. 7). The general surface of the upland region is covered continuously for miles in every direction by loam or brick-earth (No.4), about five feet thick, devoid of fossils. To the wide extent of this loam the soil of Picardy chiefly owes its great fertility. Here and there we also observe, on the chalk, outlying patches of tertiary sand and clay (No. 5, fig. 7), with eocene fossils, the remnants of a formation once more extensive, and which probably once spread in one continuous mass over the chalk, before the present system of valleys had begun to be shaped out. It is necessary to allude to these relics of tertiary strata, of which the larger part is missing, because their denudation has contributed largely to furnish the materials of gravels in which the flint implements and bones of extinct mammalia are entombed.
- Type
- Chapter
- Information
- The Geological Evidences of the Antiquity of ManWith Remarks on Theories of the Origin of Species by Variation, pp. 106 - 120Publisher: Cambridge University PressPrint publication year: 2009