The Jurassic rocks of Britain. Pub. by order of the lords commissioners of Her Majesty's Treasury

527 Pages·2009·21.89 MB·English

BOUGHT WITH THE INCOME
FROM THE
ENDOWMENT FUND
SAGE
THE GIFT OF
SHenrQ W. Sage
1891
.
jiUJMX ^^^'^^^"^^..^'^'^y^/i^a
,
jrKASsir RorK5 of britats. tox.v. Ti'outJ-
W
Map
tr .show the
(TrecL,s occnpveA'Tyyfhe
Oolitic Rocks of England
ScuH'i cftfLe^SJamber
B
Wocdwta-dy.1894.
-TT-r Oolitixareitsrxmz£€j££ljhyNet!CcrmMTh
^ Guitace€izs,andTerHcrijStnitay:
TJpperanAMTdfRe^Oo^itLcrcchs
LowerOcUii''TOch,s
Theme4xsizrtcvlourcAni.ffLeEcvstd-SeafficfEngland
arethi<sewTierePaheapwivrksDmyda-ettiycaiderlie
theNecccrm-ariandrtewerSti-ata'
\
k / lVe,ftLrngitTulc £.asl Lni/iUiidr
i
QE 681 G%™"""'''«™'«yLibrary
V.5
^»i»iiil"™™.!S,,r?,?.!5?.°'Britaln.Pub.byor
3 1924 003 858 358
Cornell University
Library
The original of this book is in
the Cornell University Library.
There are no known copyright restrictions in
the United States on the use of the text.
http://www.archive.org/details/cu31924003858358

MEMOIRS OF THE GEOLO&ICiL SURYEF
OF THE
UNITED KINGDOM.
THE
JURASSIC ROCKS
OF
B R T A
I I
]V.
VOL. V.
THE MIDDLE AND [JPPER OOLITIC EOCKS OF
ENGLAND (YOEKSHIRB EXCEPTED).
HORACE WOODWARD,
B. F.G.S.
PtraLISHED BY OBDEB OFTHE LORDS COMMISSIONEES OP HEBMAJESTY'STEEA8UBT.
LONDON:
PRINTED FOE HEE MAJESTY'S STATIONERY Oli'EICE,
BYETBE AND SPOTTISWOODE,
PEIHTEBS TO THE QUEEir'S MOST EXOELLEKT MAJESTY.
Andtobepurchased,eitherdirectlyorthroughanyBookseller,Jrom
EYBE AND SPOTTISWOODB, East HAEDiHa Sibeet, Eleet Sikeet,B.C.; or
IHOJUOGHBNS,MEBINGZG9I0I,ESW,Se&s&tCCooN..,i,lL1e2i,mSiHttabewbdeo,tt,1e04bGi,lSGatbseagefoeitwo,;wEodSritibtebeute,ohDu,blainidt.
1895.
I'rice Seven Shillings and Sixpence.

HI
PREFACE.
This volume which, like its two predecessors, is the work of
Mr. H. B. Woodward, completes the general description of the
Jurassic Rocks of England and Wales. It includes an account
of the strata from the Oxfordian to the Purbeckian dirisions,
with some remarks on the probably marine equivalents of the
Purbeck group in Lincolnshire.
As in previous volumes of this Memoir, full references are
given to the labours ofothers who have worked at the formations
described in the following chapters. In early days the broad
outlines of the geology of the Middle and Upper Oolites were
admirably sketchedbyWebster, Sedgwick,Buckland,De laBeche,
Lonsdale, Fitton, Mantell, and John Phillips. Among the later
more detailed investigations, special prominence may be given to
the elaboratework of Prof. J. F. Blake and Mr. Hudleston on the
Corallian rocks ; to the separate papers by Prof. Blake on the
Kimeridge Clay and Portland Beds and to the work of Thomas
;
Roberts on the Corallian clays. These observers have done much
to elucidate the minute stratigraphy and palajontology of the
formations to which they have so sedulously devoted their
attention.
Our information regarding the Oxfordian and Purbeckian
groups has not hitherto been summarised, and many details on
this subject are now for the first time published. I may specially
refer to the account of the Kellaways strata at Kellaways, and
to the lists of fossils from that and other localities in the south-
west ofEngland.
The Geological Survey has not hitherto published any
memoir descriptive of the higher Oolitic strata in Dorset,
although the admirable Maps and Sections by H. W. Bristow,
and the detailed sections of the Purbeck Beds by that author
and Edward Forbes, have depicted some of the main features of
the geology ofthat region.
In the preparation of this volume full advantage has been
taken of previous Memoirs ofthe Survey descriptive of the strata
in the Midland area, especially those by Prof. Hull, Prof. Green,
Prof. Judd, Mr. Jukes-Browne, and Mr. Strahan.
e 82428. 750.—11/95. Wt. 5487. a 2