CHAPTER XXVIII.

NORTH OF ENGLAND ICE-SHEET, AND TRANSPORT OF WASTDALE CRAG

BLOCKS.

Transport of Blocks; Theories of.—Evidence of Continental

Ice.—Pennine Range probably striated on Summit.—Glacial

Drift in Centre of England.—Mr. Lacy on Drift of Cotteswold

Hills.—England probably crossed by Land-ice.—Mr. Jack’s

Suggestion.—Shedding of Ice North and South.—South of England

Ice-sheet.—Glaciation of West Somerset.—Why Ice-markings are

so rare in South of England.—Form of Contortion produced by

Land-ice 456

Climate and Time in Their Geological Relations A Theory of Secular Changes of the Earth's Climate · 第 28 / 41 章