Transactions of the Geological SocietyThe Society, 1829 |
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Page 1
... character of those varieties of trap which so commonly occur associated with transition formations † . The long series of natural sections presented * The author begs to state from what sources he has derived any important information ...
... character of those varieties of trap which so commonly occur associated with transition formations † . The long series of natural sections presented * The author begs to state from what sources he has derived any important information ...
Page 3
... character , yet so connected with the former , as clearly to be referrible to the same for- mation . Of their real constitution , unfortunately , neither mineralogical cha- racter nor chemical analysis affords any decisive evidence ...
... character , yet so connected with the former , as clearly to be referrible to the same for- mation . Of their real constitution , unfortunately , neither mineralogical cha- racter nor chemical analysis affords any decisive evidence ...
Page 7
... character from those masses of the same rock which have previously been described as associated with and subjacent to greywacké , and which by many would be termed , from those circumstances of position , trans- ition trap . Yet here we ...
... character from those masses of the same rock which have previously been described as associated with and subjacent to greywacké , and which by many would be termed , from those circumstances of position , trans- ition trap . Yet here we ...
Page 10
... character of the former than of the latter , though seldom acquiring the slaty appearance of the greywacké occurring to the north of the Coal - basin . This rock commences in a point near Tiers Cross , and gradually widens towards the ...
... character of the former than of the latter , though seldom acquiring the slaty appearance of the greywacké occurring to the north of the Coal - basin . This rock commences in a point near Tiers Cross , and gradually widens towards the ...
Page 12
... character to the rock resem- bling greywacké . A small - grained compact quartzose conglomerate appears in the neighbourhood of Penally . There occurs in several places on the top of the Ridgeway a loose conglomerate , consisting of ...
... character to the rock resem- bling greywacké . A small - grained compact quartzose conglomerate appears in the neighbourhood of Penally . There occurs in several places on the top of the Ridgeway a loose conglomerate , consisting of ...
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Common terms and phrases
Ammonites animal appear argillaceous beds Belemnites Bivalves blue bones breccia Brora calcareous carbonate of lime Carsaig chalk character clay cliffs coal coast colour compact composed cone considerable consist containing cornbrash crystals deposits diluvium district earthy elephant elevated feet felspar formation fossil fragments freshwater geological granite grauwacke gravel gray green greenstone grit hills II.-SECOND SERIES inches indurated inferior oolite island Isle Jamaica laminæ latter lava lias limestone London clay lower Lyme Regis marl mass Mastodon miles mineral mountain nearly numerous observed occur old red sandstone oolitic series organic remains pebbles pitchstone Plate Ponza porphyry portion quarries quartz red conglomerate red sandstone remarkable resembling ridge rises river sand seen shale shells side siliceous slate slaty Society species specimens stone strata structure submedial substance summit surface thick tion tooth trachyte trap rocks tufa valley veins volcanic white limestone
Popular passages
Page 115 - From the fact of these tertiary outliers Dr. Buckland inferred, ' that the basins of London and Hants were originally united together in one continuous deposit across the now intervening chalk of Salisbury Plain in Wilts, and the plains of Andover and Basingstoke in Hants...
Page 363 - Geological Account of a Series of Animal and Vegetable Remains and of Rocks, collected by J. Crawfurd, Esq. on a Voyage up the Irawadi to Ava, in 1826 and 1827.
Page 364 - I quoted the opinion of Mr. Weaver on the importance of instituting a comparison between the organic remains which might be discovered in the diluvium of tropical countries, and the similar remains found in the diluvium of the temperate and frigid zones of the northern hemisphere...
Page 365 - ... through which they sink wells about two hundred feet to collect petroleum. In examining the bones, I have had the advantage of the co-operation of Mr. Clift, to whose anatomical description I beg to refer my readers. And though we are still without proof as to the existence of fossil elephants in Asia, there being no remains of these animals in the collection now before us ; we have bones and teeth of the Pachydermata which are usually associated with them in Europe, America, and Siberia; viz....
Page 115 - ... with the bones and horns of oxen, red -deer, roebucks, horses, wild boars, and beavers. A human skull, of high antiquity, has also been found in it, at a depth of many feet, at the contact of the peat with a substratum of shell-marl. It was accompanied by rude instruments of stone. Along the northern edge of this peat-bog, there is a considerable deposit of marl, mixed with calcareous tufa from two to ten feet in thickness, and frequently interstratified with beds of peat, varying from six inches...
Page 375 - The pioneers were ordered to remove a house, which would have interfered with the defence of a stockade if the enemy had assailed it. Upon endeavouring to cut down the massive teak pillars on which it was raised, they found that the edges of their hatchets were all turned. On examining into the cause of this, they found that the pillars were petrified throughout, though the house had only been built ten years ; and the pillars were under water three months in the year during the monsoon.
Page 11 - Formation of Freshwater Limestone in Forfarshire, and on some Recent Deposits of Freshwater Marl, with a comparison of recent with ancient Freshwater Formations, and an Appendix on Gyrogonites, or Seed Vessel of Chara ;" also one " On the Strata of the Plastic Clay Formation exhibited in the Cliffs between Christchurch Head, Hampshire, and Studland Bay, Dorsetshire...
Page 411 - Antediluvian Phytology, illustrated by a Collection of the FOSSIL REMAINS OF PLANTS, peculiar to the Coal Formations of Great Britain...
Page 415 - Some Account of the Science of Botany ; being the Substance of an Introductory Lecture...