PRELIMINARY NOTICE i-v
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"It has been endeavoured to render the present volume useful not only
as an account of the physical structure of England but also as a
general manual of Geology. ...The principles thus generally laid down
are, in the body of the work, illustrated in the detail by their
application to the geological phoenomena of our own island; the full
developement of these forms the princiipal object of the work, but to
avoid partial and incomplete views we have subjoined, wherever it was
possible, concise accounts of the comparative geology of other
countries."
INTRODUCTION i-lxi
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[p.ii] If we suppose an intelligent traveller taking his departure from
our metropolis, to make from that point several successive journies to
various parts of the island, for instance to South Wales, or to North
Wales, or to Cumberland or to Northumberland, he cannot fail to notice
(if he pays any attention to the physical geography of the country
through which he passes) that before he arrives at the districts in
which coal is found, he will first pass a tract of clay and sand; then
another of chalk; that he will next observe numerous quarries of the
calcareous freestone employed in architecture; that he will afterwards
pass a broad zone of red marly sand; and beyond this will find himself
in the midst of coal mines and iron furnaces. This order he will find
to be invariably the same, which ever of the routes above indicated he
pursues; and if he proceeds further, he will perceive that near the
limits of the coal-fields he will generally observe hills of the same
kind of compact limestone, affording grey and dark marbles, and
abounding in mines of lead and zinc; and at a yet greater distance,
mountainous tracts in which roofing slate abounds, and the mines are
yet more valuable; and lastly, he will often find, surrounded by these
slaty tracts, central groups of granitic rocks.
The intelligent enquirer, when he has once generalised these
observations, can scarcely fail to conclude that such coincidences
cannot be casual; but that they indicate a regular succession and order
in the arrangement of the mineral masses constituting the Earth's
surface; and he must at once perceive that, supposing such an order to
exist, it must be of the highest importance to oeconomical as well as
scientific objects, to trace and ascertain it.
If with these views he is led to investigate the subject still further,
he will find these mineral masses disposed for the most part in
stratified beds, not exactly parallel to the horizon, but more or less
inclined with reference to that plane; so that the edges of these beds,
emerging in succession from beneath each other, make their appearance
one after the other on the surface.
[p.ix] With the exception of those contained in the most recent beds
(the crag) only, nine out of ten fossil shells belong to species
decidedly different from any known to exist. The family of ammonites,
for instance, contains more than two hundred fossil species according
to many authors, ...yet of all these not one is known recent, and the
only recent species of the whole genus is a very minute shell; yet the
fossil species sometimes measure three feet in diameter... The same
remarks will apply to the belemnites, of which no recent species is
known.
[p.xiii] [geology] is a subject which can be treated with advantage
only by those who bring to it a matured and precise knowledge of the
branches of natural history with which it is connected, a remark
extorted by the flippant manner in which some writers have treated
conclusions, the premises of which they were incompetent to comprehend.
[footnote reference to "the hasty speculations contained in [George
Young,]
A Geological Survey of the
Yorkshire Coast," published in 1822 by George Young]
[p.xvi] It is not the business of the present work to propose theories,
but to record facts.
[p.xliv] [Reference to Hutton,
Theory
of the Earth]
"the
wildness of many of his theoretical views, however, went far to
counterbalance the utility of the additional facts which he collected
from observation."
[p.xlv] In 1790 Mr. William Smith, (a name which can never, in tracing
the history of English geology, be mentioned without the respect due to
a great original discoverer) appears to have commenced his researches
in the neighbourhood of Bath, having in that year drawn up a tabular
view of the strata exhibited in that district, which in fact contained
the rudiments of his subsequent discoveries. Ten years afterwards he
circulated the proposals for publishing a treatise on the Geology of
England to be accompanied by a coloured map and sections, and in the
interval had freely communicated the information he possessed in many
quarters, till in fact it became by oral diffusion the common property
of a large body of English geologists, and thus contributed to the
progress of the science in many quarters where the author was little
known.
[p. lix - on the consistency of the geological record with the Bibilcal
Creation account] With regard to the antiquity of the human race, the
conclusions deductible from geological reasoning appear strictly in
accordance with the declarations of Revelation, no human remains having
yet been found excepting in beds of undoubtedly very little antiquity.
With regard to the time requisite for the formation
of the secondary strata, we have the choice of the following
hypothesis. [three optional ways of interpreting the Biblical account
are listed including days that are of considerable length, and the
existence of an unrecorded "intermediate state" following the general
statement of Genesis 1:1, out of which the present order was created
(sometimes called the gap theory).]
BOOK I.
SUPERIOR ORDER.
Synonymes. Newest Floetz or Tertiary
Rocks,
Comprising the Formations above the
Chalk.
[p.3]
An account of the Geological
situation of England, tracing the disposition of the materials
which constitute its mineral masses, following the order of that
disposition in descending from the formations which occupy the highest
place in the series and are therefore of the most recent origin, to
those which serve as the basis to all the rest and must therefore have
been formed at the earliest period.
Chapter I. Preliminary. 3
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Section 1. General view of the highest
and most recent deposits: 3
a. alluvial;
b. diluvial;
c. regular strata and their division.
Section II. Strata above the Chalk generally considered 6
a. nature and extent:
b subdivisions;
c. analagous formations in other countries.
Chapter II. View of the Upper Marine formation. 10
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Section 1. Crag of Suffolk 11
a. chemical and external characters;
b. mineral contents;
c. organic remains;
d. range and extent;
e. e1evation ;
f. thickness;
g. inclination ;
h. agricultural character;
i. phoenomena of water and springs;
k. miscellaneous remarks.
Section II. Bagshot Sand, a to k. as above. 14
Section Ill. Isle of Wight, a to k. as above. 15
Chapter III. Freshwater formations. 16
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Section I. General view, with a note on
Freshwater shells in other formations. 16
Section II. Upper Freshwater formation ; Isle of Wight a to k as above.
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Section Ill. Lower Freshwater formation; Isle of Wight, a to k as
above. 20
Chapter IV. London Clay. 22
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Section I. Preliminary view. 22
Section 11. a to k as above. 23
Chapter V. Plastic Clay. 37
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Section I. General view, a to k as
before. 37
Section II. Local details. 42
a. Near Reading; 42
b. Near London: 44
c. Newhaven; 51
d. Dorsetshire; 53
e. Isle of Wight. 54
Appendix. On the Formations above the Chalk in Lincolnshire and
Yorkshire. 56
056
BOOK
II. SUPERMEDIAL ORDER.
Synonymes.-This class includes generally all the secondary formations
more recent than the great Coal-deposit, and between it and the
Tertiary or Newest Floetz class. As the first Floetz Limestone of
Werner corresponds with the lowest calcareous formation of this order,
it may be said to be coextensive with the Floetz class of his school,
as distinguished from the Newest Floetz; but some Wernerians include
the Coal-deposits among the Floetz, while others refer them to the
Transition oider.
Introduction, comprising a General View of this Order. 59
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Chapter I. The Chalk Formation. 62
Section I. General and introductory
observations: 62
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(a) on the connection of the Chalk and more recent beds; (b) on the
Foreign localities of this formation.
Section II. Particular account of the Chalk formation: 67
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a. chemical and external characters; b. mineral contents; c.
organic remains ; d. range and extent ; e. elevation ; f. thickness; g.
inclination ; h. agricultural character; i. phoenomena of water and
springs; k. miscellaneous remarks.
[p.72] The chalk presents us with phoenomena very different from those
of the more recent formations. ... probably not a single species will
be found, identical in all its characters with any now known to exist.
> starfish, sponges, extinct species -- Ammonites (ovate and
circular), Scaphites, Belemnites
Section III. Particular view of the Sections of this formation in the
cliffs of the Southern coast 89
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(a) Isle of Thanet, 89
(b) near Dover, 90
Chalk with numerous flints 93
Chalk with Few Flints 99
Chalk without Flints 101
Grey Chalk 104
(c) Sussex Cliffs, 105
(d) Isle of Wight, 107
(e) Isle of Purbeck, 110
(f) between Lyme and Sidmouth; 114
(g) Comparative view of the opposite French coast. 115
Chapter II. Beds between the Chalk and Oolitic series. 119
Section I. General and
Introductory; 119
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(a) general enumeration of the series
as ascertained in England,
(b) Foreign localities.
Section II. Chalk Marle, a to k. as before. 123
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Section III. Green Sand, a to k as before. 127
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Section IV. Weald Clay, a to k. as before. 133
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Section V. Iron Sand, a to k. as before. 136
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Section VI. VII. VIII. & IX. Particular account of the distribution
of these formations in the several districts occupied by them.
Chapter III. Oolilic series, including all the Strata between the iron
Sand and Red Marle, or New Red Sandstone. 165
Chapter IV. Formations betecn the Lias and Coal Strata. 278
Contents Book III 321
BOOK
III. MEDIAL or CARBONIFEROUS ORDER.
Independent Coal-formation of Werner.
Chapter I. General view.
The characters of these formations are
treated generally under the same
heads as in the former Books: but the description of their range and
extent, height, and other local phcenornena, are necessarily referred
to the following Chapters, which treat of the several English Coal
districts in their geographical order.
Chapter II. Coal-district north of Trent, or Grand Penine chain. 365
Introductory view of the general
features of this district 365
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368 369
Section I. Coal formations in the
fields of ... 369
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a. Northumberland and Durham. 369
b. North of Yorkshire. 377
c. South Yorkshire Nottingham and Derby. 378
d. South of Derby. 381
e. North Stafford. 381
f. South Lancashire. 382
g. North Lancashire. 384
h. Cumberland or Whitehiven. 385
i. Foot of Cross Fell. 386
Section II. Millstone-grit & Shale throughout the Penine chain.
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Section III. Carboniferous Limestone of the Penine Chain 393
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Section IV. Old Red Sandstone, on North-west of the Penine chain.
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Chapter III. Central Coal-district. Coal-formation, &c. in the
fields of: 403
Chapter IV. Western Coal-district; divided into: 417
Section I. North Western or North
Welsh Coal-fields 417
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1. Isle of Anglesea. 417
2. Flintshire. 418
Section II. Middle Western or Shropshirre Coal-fields of:
419 420
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a. Plain of Shrewsbury. 419
b. Coalbrook dale. 420
c. The Clee hills
and Billingsley. 422
d. Near the Abberley hills. 424
Section III. Great South-Western Coal District 425
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427 428
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Coal-formation in the basins of
1.
South Wales, 426
2. Forest of Dean. 428
3. South Gloucester and Sommerset. 428
a. Coal-Measures 428
b.
Millstone-grit 430
c. Mountain Limestone 430
d. Old Red
Sandstone 434
Chapter V. Trap rocks occurring in association with the coal-measures
437
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439
440
441
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443
Particular description and localities
of the Trap rocks 443
I. Beds overlying masses, and dykes, of
trap in Nothumberland and Durham 443
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446
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448
II. Trap rocks of Derbyshire 448
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III. (V) Greenstone Beds of Grifdfe in the Warwickshire Coal-field
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IV. (VI) Trap Rocks of Staffordshire 457
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V. (VII) Secondary Traps of Shropshire 459
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Chapter VI. Comparative view of the distribution of the Carboniferous
formations in other countries. 461
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468 469
470