A Manual of the Geology of India: Chiefly Compiled from the Observations of the Geological SurveyThe geologist Richard Dixon Oldham (1858-1936) published the second edition of Geology of India in 1892 for the Geological Survey of India. The work is a thoroughgoing revision of the first edition of the same manual compiled by H. M. Medlicott (1829-1905) and W. T. Blanford (1832-1905), published in 1879. It contains one of the earliest and most important geological surveys of India. Owing to an increase in available data since the first edition, descriptions of the rock formations of the country are arranged chronologically. This edition is particularly important for the data on, and discussion of, the age and origins of the Himalayas. It includes other chapters on metamorphic and crystalline rocks, fossils, vegetation, volcanic regions, geological history, and rock formation. It is a key work of nineteenth-century geology which remains relevant for geologists studying the subcontinent today. |
Contents
CHAPTER I | 1 |
Radiating basaltic columns in a dyke near Gújri northwest of Maheswar | 3 |
hills of Southern India possibly isolated by marine denudation former continuity | 7 |
Map of the IndoGangetic alluvium | 8 |
hills of eastern frontier and Burma Salt range and Assam Hills Drainage system | 19 |
Burma Ramri and Cheduba 20 ignition of marsh gas by lightning 21 Assam Balúch | 23 |
End of Chapter XIX | 40 |
CHAPTER III | 47 |
group or Kuchri ammonite bed Salt range connection in Cutch jurassics 228 Himá | 230 |
group general description 233 coral reefs littoral character of upper beds derivation | 242 |
cretaceous fauna 247 former continuity of coast line Western India Bagh beds | 248 |
stone 249 fauna of the groups 250 correlation cenomanian age contrast to fauna | 254 |
Fig 15 | 256 |
Hill of rock salt at Bahádur Khel after Wynne | 258 |
CHAPTER XII | 285 |
palæontological anomaly of fauna section near Khelát 291 Suláimán range Petroleum | 292 |
in Nellore 50 possible confusion with disturbed Cuddapahs Bijáwar system uncon | 53 |
Fig 1 | 67 |
Transition rocks of Behar hills disturbance 57 distinctness of boundary metamor | 71 |
CHAPTER IV | 77 |
Fig 5 | 84 |
CHAPTER V | 109 |
stratification salt and gypsum deposits impurities of the salt gypsum beds 110 sup | 118 |
Fig 7 | 124 |
Fig 17 | 140 |
CHAPTER VII | 149 |
atile origin 150 possible lacustrine origin of the Talchir group relations to older and newer | 168 |
Fig 11 | 170 |
Fig 12 | 175 |
CHAPTER VIII | 191 |
Fig 13 | 202 |
Heterogeneous character of the floras difficulty of determining relationship of fossil plants | 214 |
group general description 223 palæontological contradiction between flora and fauna | 224 |
Fig 14 | 225 |
CHAPTER XIII | 299 |
CHAPTER XIV | 345 |
classification Sirmur series Subáthu group 349 ferruginous bottom bed relation | 362 |
CHAPTER XV | 369 |
CHAPTER XVI | 391 |
Miliolite of Káthiáwár Cave deposits 395 Alluvial deposits valley plains of Narbadá | 400 |
Kistna alluvium 402 fossils and flint implements diamond gravels East Coast allu | 409 |
Fig 21 | 417 |
of the Indus 416 disturbed subrecent beds gravel fans the Karez 417 loess pseudo | 421 |
CHAPTER XVII | 427 |
Upper India 429 probable recent presence of sea in Sind 430 older and newer allu | 438 |
Fig 23 | 456 |
CHAPTER XVIII | 459 |
Sandhills of the longitudinal type after the Sind Revenue Survey | 468 |
tain chains of the northwest termination 460 main range probably an aggregate | 469 |
encroachment of hills on area of deposition 471 Fishers theory of mountain formation | 477 |
absence of conglomerates in lower Siwáliks 478 tertiary age of the Himálayas evidence | 489 |
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Common terms and phrases
Alethopteris alluvial alluvium Ammonites appears Arávalli Ariyalúr bands Barakar basin beds Bengal Bijáwars boulder boundary Bundelkhand calcareous carboniferous clay coal coast colour composed conglomerate containing cretaceous Cuddapah Cutch Damuda Deccan trap denudation deposits described disturbance east elevation evidence fauna feet felspar ferruginous flora foliation formation fossils fragments geological gneiss gneissic gneissose Godávari Gondwána granite granitoid grey Gwalior hills Himalayas horizon hornblende India Indus intrusive Jabalpur jurassic Karharbári Karnúl known laterite limestone lithological lower Vindhyans marine Memoirs metamorphic miles Narbadá valley neighbourhood neocomian newer nummulitic occur older origin outcrop outliers overlaid overlying palæozoic pebbles Peninsula plain plateau portion probably Productus quartz quartzites Rájmahál recognised Records resemblance river rocks Salt range sand sandstones scarp schists shales Siwálik slates southern species Stoliczka strata surface Talchir tertiary thickness transition Trichinopoli Umia unconformity upper Vindhyans Utatúr volcanic W. T. Blanford