Page images
PDF
EPUB

THE

DYNAMICAL THEORY

OF THE

FORMATION OF THE EARTH.

BY

ARCHIBALD TUCKER RITCHIE.

“Through faith we understand that the worlds were framed by the
Word of God; so that things which are seen were not made of things

which do appear.”

HEBREWs xi. 3.

VOL. II.

LONDON:
LONGMAN, BROWN, GREEN, AND LONGMANS,

PATERNOSTER ROW.

MDCCCL.

[ocr errors][ocr errors][merged small]

CONTENTS OF VOL. II.

CHAPTER XIX.

Introductory remarks. Classification of rocks into Stratified and UN

STRATIFIED. Geological data for the correctness of these two great divisions. Evidences in favour of the Dynamical Theory, deducible from the unstratified rocks. Nucleii and centres of mountain chains generally composed of amorphous masses. Their prevalence on the Earth's surface. Geological attestations in support of this. Axis of elevation observable in mountain ranges, and the conical form which their eminences have assumed. Argument, founded on the stratified rocks, to show that the mineral crust of the Earth has been moved, in mass, from where it was formed. Firstly. Strata deposited horizontally at the bottom of water. Geological evidences to this effect. Secondly. That they have been elevated from the position in which they were deposited, proved by numerous evidences. Concluding observations arising from the establishing of these several assumptions

1

CHAPTER XX.

Evidences to prove, that the non-rotatory sphere was circumbounded by

water-astronomical proof-geological proof. This fact, combined with what was established in previous chapters, leads to the conclusion, that violent movement, therefore much friction, and consequently great heat, would necessarily ensue amongst the rocky masses of the earth's crust. The characteristics of Friction enquired into, and the Breccia which would result, when mineral formations, abounding with calcareous material, were subjected to its influence under water. The great Breccia and Conglomerate formations geologically described, and shown to correspond with that which the Dynamical Theory requires for its perfection, should be found to exist. Some of the more special uses which they were designed to accomplish made manifest. The Coal Measures protected by the Conglomerate and Breccia from fusion and denudation. The nucleii of mountain ranges the resultant foci of heat engendered by friction. Geological proof of this, deduced alike from the mineralogical structure of the rocks composing these elevations, and from the existing symptoms of fusion, evidenced by the altered condition of their contiguous strata

30

CHAPTER XXI.

Evidences of the existence, in former times, of fusion in the primary

rocks, derived from their internal or mineralogical structure. Carbonate of lime fused under pressure-mineralogical results. Crystallization proceeding from igneous fusion. Geological evidences to prove that a considerable proportion of the rocky crust of the Earth is crystalline in its texture. Essential difference between rocks properly called crystalline, of older formation, and those resulting from modern volcanoes, called lavas

60

690916

CHAPTER XXII.

[ocr errors]

CHAPTER XXVI.

The previous subject continued. Formation of Earths and Soils. The

attendant circumstances peculiarly favourable for this needful pro.

cess. The unconformable rocky masses which overlie the coal

measures. Geological evidence of their existence. Enquiry into

their origin, as made known to us by the Dynamical Theory. Geo-

logical character of the newer Secondary Suites. The New Red

CHAPTER XXX.

Allusion to the concluding subject of the foregoing Chapter. Diffusion

principle of Gases. Theorem and scientific evidences in favour of

their expansiveness. Scriptural corroborations. The Atmosphere.

Its aerial portion. Its aqueous or vaporous portion. The action

of these two distinct bodies on one another, constituting the prin-

cipal part of the machinery of the weather. Recapitulation of these

points, and their application to elucidate the Dynamical Theory

2.30

« PreviousContinue »