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The World Before the Deluge

Chapter 56: INDEX.
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About This Book

A sweeping popular-science account traces Earth's development from an initial gaseous state through condensation, igneous and metamorphic activity, and the stratified succession of sedimentary epochs. It explains rock types and volcanic processes, then follows successive geological periods—detailing marine and terrestrial faunas, coal formation, and climatic shifts—using fossils, footprints, and petrified droppings as evidence. Later chapters cover the most recent glacial and post-glacial changes, catastrophic inundations, and the emergence of humans, illustrated by diagrams and reconstructions that combine paleontology, stratigraphy, and accessible geological theory.


[98] H. Woodward, Geological Magazine, vol. viii., p. 193.

[99] “Darwin’s Journal,” p. 130.

[100] “Journal of Researches,” &c., 2nd ed., p. 133. Charles Darwin.

[101] “Journal of Researches,” &c., by Charles Darwin, p. 81.

[102] “Journal of Researches,” &c., by Charles Darwin, 2nd ed., p. 81.

[103] “Reliquiæ Diluvianæ,” by the Rev. W. Buckland, 1823, p. 19.

[104] “Elements of Geology,” p. 122.

[105] Quart. Jour. Geol. Soc., 1859.

[106] Revue des Deux Mondes, p. 925; March 1, 1847.

[107] “Carte des Anciens Glaciers des Alpes,” pp. 8-10. (1860.)

[108] Professor Ramsay, “The Old Glaciers of North Wales.” Longman, 1860.

[109] In 1840 Dr. Buckland described the occurrence of boulders of Criffel Granite between Shalbeck and Carlisle, and attributed their position to the agency of ice floating across the Solway Firth.

[110] Mr. Darbishire records seventy species from Macclesfield and Moel Tryfaen, taken together, of which 6 are Arctic, and 18 are not known in the Upper Crag.

[111] The typical species in West Lancashire are Tellina Balthica, Cardium edule, C. aculeatum, C. rusticum, Psammobia ferroensis, Turritella terebra.

[112] Geological Magazine, vol. iii., p. 483.

[113] Revue des Deux Mondes.

[114] “Ossements fossiles. Discours sur les Révolutions du Globe.”

[115] Lyell’s “Elements of Geology,” p. 175.

[116] It is told of a former distinguished and witty member of the Geological Society that, having obtained possession of the rooms on a certain day, when there was to be a general meeting, he decorated its walls with a series of cartoons, in which the parts of the members were strangely reversed. In one cartoon Ichthyosauri and Plesiosauri were occupied with the skeleton of Homo sapiens; in another, a party of Crustaceans were occupied with a cranium suspiciously like the same species; while in a third, a party of Pterichthys were about to dine on a biped with a suspicious resemblance to a certain well-conditioned F.G.S. of the day.

[117] “Époques de la Nature,” vol. xii., pp. 322-325. 18mo. Paris, 1778.


EPILOGUE.

Having considered the past history of the globe, we may now be permitted to bestow a glance upon the future which awaits it.

Can the actual state of the earth be considered as definitive? The revolutions which have fashioned its surface, and produced the Alps in Europe, Mount Ararat in Asia, the Cordilleras in the New World—are they to be the last? In a word, will the terrestrial sphere for ever preserve the form under which we know it—as it has been, so to speak, impressed on our memories by the maps of the geographers?

It is difficult to reply with any confidence to this question; nevertheless, our readers will not object to accompany us a step further, while we express an opinion, founded on analogy and scientific induction.

What are the causes which have produced the present inequalities of the globe—the mountain-ranges, continents, and waters? The primordial cause is, as we have had frequent occasion to repeat, the cooling of the earth, and the progressive solidification of the external crust, the nucleus of which still remains in a fluid or viscous state. These have produced the contortions, furrows, and fractures which have led to the elevation of the great mountain-ranges and the depression of the great valleys—which have caused some continents to emerge from the bed of ocean and have submerged others. The secondary causes which have contributed to the formation of a vast extent of dry land are due to the sedimentary deposits, which have resulted in the creation of new continents by filling up the basins of the ancient seas.

Now these two causes, although in a minor degree, continue in operation to the present day. The thickness of the terrestrial crust is only a small fraction compared to that of the internal liquid mass. The principal cause, then, of the great dislocations of the earth’s crust is, so to speak, at our gates; it threatens us unceasingly. Of this the earthquakes and volcanic eruptions, which are still frequent in our day, give us disastrous and incontestable proofs. On the other hand, our seas are continually forming new land: the bed of the Baltic Sea, for instance, is gradually rising, in consequence of the deposits which will obviously fill up its area entirely in an interval of time which it might not be impossible to calculate.

It is, then, probable that the actual condition of the surface and the respective limits of seas and continents have nothing fixed or definite in them—that they are, on the contrary, open to great modifications in the future.

There is another problem much more difficult of solution than the preceding, but for which neither induction nor analogy furnish us with any certain data—viz., the perpetuity of our species. Is man doomed to disappear from the earth some day, like all the races of animals which preceded him, and prepared the way for his advent? Will a new glacial period, analogous to that which, during the Quaternary period, was felt so rigorously, again come round to put an end to his existence? Like the Trilobites of the Silurian period, the great Reptiles of the Lias, the Mastodons of the Tertiary, and the Megatheriums of the Quaternary epoch, is the human species to be annihilated—to perish from the globe by a simple natural extinction? Or must we believe that man, gifted with the attribute of reason, marked, so to say, with the Divine seal, is to be the ultimate and supreme term of creation?

Science cannot pronounce upon these grave questions, which exceed the competence, and extend beyond the circle of human reasoning. It is not impossible that man should be only a step in the ascending and progressive scale of animated beings. The Divine Power which has lavished upon the earth life, sentiment, and thought; which has given organisation to plants; to animals, motion, sensation, and intelligence; to man, in addition to these multiple gifts, the faculty of reason, doubled in value by the ideal—reserves to Himself perhaps in His wisdom the privilege of creating alongside of man, or after him, a being still more perfect. This new being, religion and modern poesy would present in the ethereal and radiant type of the Christian angel, with moral qualities whose nature and essence would escape our perceptions—of which we could no more form a notion than one born blind could conceive of colour, or the deaf and dumb of sound. Erunt æquales angelis Dei. “They will be as the angels of God,” says Holy Scripture, speaking of man raised to the life eternal.

During the Metamorphic epoch the mineral kingdom existed alone; the rocks, silent and solitary, were all that was yet formed of the burning earth. During the Primary epoch, the vegetable kingdom, newly created, extended itself over the whole globe, which it soon covered from pole to pole with an uninterrupted mass of verdure. During the Secondary and Tertiary epochs, the vegetable and animal kingdoms divided the earth between them. In the Quaternary epoch the human kingdom appeared. Is it in the future destinies of our planet to receive yet another lord? And after the four kingdoms which now occupy it, is there to be a new kingdom created, the attributes of which can never be anything but an impenetrable mystery, and which will differ from man in as great a degree as man differs from the other animals, and plants from rocks?

We must be contented with suggesting, without hoping to solve, this formidable problem. It is a great mystery, which, according to the fine expression of Pliny, “lies hidden in the majesty of Nature,” latet in majestate naturæ; or (to speak more in the spirit of Christian philosophy) it is known only to the Almighty Creator of the Universe.

TABLE
OF
BRITISH SEDIMENTARY AND FOSSILIFEROUS STRATA.

By H. W. BRISTOW.

  Subdivisions. Foreign
Equivalents.
Origin. Commercial
Products.
Post Pliocene.   Blown Sand.
Raised Beaches.
Alluvium.
Brick Earth.
River Gravel.
Cave Deposits.
Glacial Deposits.
    Mud of the Nile.
Loess of the Rhine.
Various. Peat.
Amber.
Gold, Diamonds,
and other Gems
derived from the
older deposits.
Pliocene.   Crags.     Sub-Apennine
Strata.
Marine Phosphatic Nodules.
Miocene.   Leaf Beds and Lignite.     Molasse.
Faluns of Touraine.
and Pipeclay.
Eocene.   Upper Eocene.
Bagshot Beds.
London Clay.
Reading Beds, &c.
    Calcaire Grossier.
Nummulitic Lime-
stones (European
and Asiatic).
Freshwater.
Estuarine
and
Marine.
Sand, Brown Coal,
Pipeclay,
Cement Stone,
Bricks, and Pottery.
         
Upper Cretaceous.   White and Grey Chalk.
Upper Greensand.
    Maestricht Beds.
Senonien Turonien.
Marine
and
Freshwater
(Wealden).
Flints from Up. Chalk.
Phosphate of Lime.
Iron Pyrites.
Sandy Ironstones.
Building Stone.
     
    Gault.     Albien.
Lower Cretaceous.   Lower Greensand.
Wealden Beds, &c.
  Aptien.
Neocomian.
         
         
Upper Oolitic.   Purbeck.
Portland and Kimeridge.
    Estuarine
and Marine.
Coal, Jet,
Iron Ores,
Roofing Slates,
Building Stones,
and Flags.
Alum Shales.
Hydraulic Lime-
stones.
Middle Oolitic.   Coral Rag & Oxford Clay.      
Lower Oolitic.   Cornbrash.
Forest Marble and Great
Oolite.
Stonesfield Slate.
Inferior Oolite.
    Jura Formation. Marine.
    Lias.      
Keuper.
Bunter.
  Rhætic.
New Red Marl, Sandstone,
and Conglomerate.
Sandstone & Pebble Beds.
    Muschelkalk absent
in British Isles.
Inland Seas.
Salt Lakes.
Gypsum.
Rock Salt.
Building Stones.
Magnesian Lime-
stone.
  Red Marls and Magnesian
Limestone.
    Zechstein.
Kupferschiefer.
Rothliegende.
Marine. Building Stones.
Lower Permian.   Red Marl, Sandstone, and
Conglomerate.
   
Carboniferous.   Coal Measures.
Millstone Grit.
Yoredale Rocks.
Mountain Limestone.
    Carboniferien. Terrestrial
and
Marine.
Coal, Anthracite.
Iron and Lead Ores.
Bldng. Stone,Marble.
Oil Springs.
Devonian
and
Old Red Sandstone.
  Devonian Slates and
Limestones.
Old Red Sandstone, &c.
    Eifel Limestone. Marine
and
Freshwater.
Ornamental Marbles.
Serpentine & Slates.
Tin, Copper, Lead,
Silver Ores, &c.
         
Upper Silurian.   Ludlow.
Wenlock.
Upper Llandovery.
    Primordial Zone. Marine. Roofing Slates.
Building Stones.
Gold & other Metals.
   
Lower Silurian.   Lower Llandovery.
Bala and Caradoc.
Llandeilo.
Lingula Flags.
         
Cambrian.   Harlech Grits.
Llanberis Slates.
    Huronian of
America.
Marine. Roofing Slates.
Gold & other Metals.
Laurentian.   Gneiss
of the Outer Hebrides, and
N.W. Coast of Scotland.
    Labradorite Series
in Canada.
Marine. Serpentine.
Graphite.
Metamorphic Rocks (of all ages):—
Gneiss, Mica-schist, Quartzite, Talcose-schist, &c. (Serpentine probably?)
Intrusive Rocks (of all ages):—
Lavas, Basalt, Trachyte, Pitchstone, &c.
Granite, Syenite, Greenstone, Felstone, Porphyrites, Melaphyres, Mica-Traps, &c. &c.

EXTENSION OF THE PREVIOUS TABLE.

                                                           
AGE
OF
MAM-
MALS.
  POST
TERTIA-
RY.
    PLEISTO-
CENE,
or
Quater-
nary.
  Recent
and
Pre-
Historic.
  Blown Sand and Shingle.
Alluvium and River Deltas.
Burtle Beds of Somerset.
Clay, with Scrobicularia of Pagham, Morecombe, &c.
Submerged Forests of Bristol Channel, &c.
Peat Bogs of Ireland and Peat Beds of England.
 
Post
Glacial
  Raised Beaches.
Cave Deposits   Cave Earth and Loam.
Stalagmite and Bone-breccia.
River Gravels, Brick Earths, and Freshwater Clays, with Mammalian Remains.
Gravels of Bedford Levels, Salisbury, and other Old Valley Gravels and Alluvia.
Tufa and Shell-marl.
 
Glacial   Kaimes or Kames of Scotland.
Eskers or Escars of Ireland.
Drift (Upper Boulder Clay or Till, Marine Gravels, Lower Till and Moraines), Scotch and Welsh, Loess of the Rhine, &c.
 
Pre-
glacial
  Forest Bed of Norfolk Shore.
 
KAINO-
ZOIC,
OR
TERTIA-
RY.
    PLIO-
CENE.
  Crag   Mammaliferous Crag   Norwich and Chillesford Crag (Newer Pliocene).
Red Crag
Coralline Crag (Suffolk Crag) (Older Pliocene).
 
MIOCENE.   Leaf Bed of Mull.
Lignite of Antrim.
Bovey Beds, with Lignite.
 
EO-
CENE.
  Upper
Eocene.
  Hemp-
stead
Beds
  Corbula Beds.   Fluvio-Marine Series.
Upper   Freshwater and Estuary Marls.
Middle
Lower
 
Bem-
bridge
Beds
  Bembridge Marls.
Limestone.
 
Middle
Eocene.
  Osborne
Beds
  St. Helen's Sands.
Nettlestone Grits.
 
Headon
Beds
  Upper   Headon Beds.
Middle
Lower
 
Bagshot
Beds
  Upper Bagshot Sand.
Middle   Barton Clay.
Bracklesham Beds.
Lower  Sand and Pipeclay, with Plants.
 
Lower
Eocene.
  London
Tertia-
ries
  London Clay and Bognor Beds (Upper London Tertiaries).
Oldhaven Beds.   Lower do.
Woolwich and Reading Beds (Plastic Clay).
Thanet Beds.

                                                     
MESO-
ZOIC,
OR
SECON-
DARY.
    CRETA-
CEOUS.
  Upper
Creta-
ceous.
  Chalk   Upper Chalk, with Layers of Flint (Maestricht and Faxoe Beds).
Lower Chalk, without Flints.
Chalk Marl.
Chloritic Marl.
 
    Upper Greensand (Fire-stone of Surrey, Malm-rock), &c.
 
    Gault.
 
Lower
Creta-
ceous,
or
Neo-
comian.
  Weal-
den.
  Neo-
co-
mian.
  Lower
Green-
sand
  Folkestone Beds (Sand).
Sandgate Beds (with Fullers’ Earth).
Hythe Beds (with Kentish Rag and Bargate Stone).
Atherfield Clay.
 
    Weald Clay (with Sussex or Bethersden Marble and Horsham Stone).
 
Has-
tings
Sands
  Upper Tunbridge Wells Sand   Tunbridge Wells Beds.
Grinstead Clay
Lower Tunbridge Wells Sand
Wadhurst Clay (with Iron Ore).
Ashdown Sands.
Ashburnham Beds.
   
JURAS-
SIC
SERIES.
  OO-
LITIC
SERIES.
  Upper
Oolite.
    Pur-
beck
  Upper (with Purbeck Marble)   Purbeck Beds.
Middle
Lower (with Dirt Beds)
 
Portland   Portland Stone.
Portland Sand.
Kimeridge Clay (with Bituminous Shale).
 
Middle
Oolite.
  Coralline Oolite   Upper Calcareous Grit.
Coral Rag (with Iron Ore).
Lower Calcareous Grit.
 
Oxford Clay   Oxford Clay and
Kellaways Rock.
 
Lower
Oolite.
  Forest Marble   Cornbrash.
Forest Marble and    
Bradford Clay (with Encrinites)
 
Great Oolite   Great or Bath Oolite (with “Fullers’ Earth” at base, in S. of England).
Stonesfield Slate, near the base, in part of S. of England.
 
Fullers’ Earth   Upper Fullers’ Earth (Clay).
Fullers’ Earth Rock (Limestone).
Lower Fullers’ Earth (Clay).
 
Inferior Oolite   Northampton Sand (with Iron Ore, in N. Oxfordshire and S. Northamptonshire).
Ragstone and Clypeus Bed.
Upper Freestone.   Cheltenham Sections.
Oolite Marl.
Lower Freestone.
Pea Grit.
(Colleyweston Slate, at the base of the Limestone, in Lincolnshire).
Sands.
 
Age of Reptiles,
or
Saurozoic Epoch.
Lias.   Upper Lias   Clay and Shale.
 
Middle Lias, or Marlstone (Rock Bed, with Iron Ore, Sand, &c.).
 
Lower Lias   Clay, Shale, and Limestone.
 
POIKI-
LITIC
SERIES.
  Trias,
or
New Red
Sand-
stone.
  Upper
Trias.
  Rhætic, or Penarth Beds.   “White Lias,” Avicula contorta Beds, with Koessen Beds.
Bone Beds of Aust, &c.
St. Cassian and Hallstadt Beds.
 
Keuper   Red variegated Marl and Upper Keuper Sandstone (with Gypsum and Rock Salt).
Lower Keuper Sandstone and Marl (Waterstones).
Dolomitic Conglomerate (of Keuper Age, Somerset, Gloucester, and S. Wales).
 
Middle
Trias.
      Muschelkalk, absent in Britain.
 
Lower
Trias.
  Bunter   Upper Red and Mottled Sandstone.
Pebble Beds, Calcareous Conglomerate, and Breccia.
Lower Red and Mottled Sandstone.

                                               
  Germany.
 
PALÆO-
ZOIC, OR
PRIMARY.
  UPPER
PALÆO-
ZOIC.
Age of
Fishes,
or Ichthyo-
zoic
Epoch.
  Permian.   Upper, or
Magnesian
Limestone
Series.
  Upper Red Marl and Sandstone   Zechstein.
Upper Magnesian Limestone
Lower Red Marl and Sandstone
Lower Magnesian Limestone
 
Lower, or
Rothliegende.
  Red Marl, Sandstone, Breccia, Röthe-liegende, and Conglomerate.
 
Carboniferous Series.
Age of Plants, or
Phytozoic Epoch.
    England.   Scotland.
 
Coal
Measures
  Upper Coal Measures     Upper Coal Measures.
Middle Coal Measures  
Pennant Grit
Lower Coal Measures  
Gannister Beds  
 
    Millstone Grit or Farewell Rock   Moor Rock.
 
Carboni-
ferous, or
Mountain
Limestone.
  Upper Limestone Shale (Yoredale Rocks)   Upper Limestones.
Edge Coals Series.
Lower Limestones.
Carboniferous Limestone
 
Lower Limestone Shale   Sandstones, Shales, and Burdie House Limestone.
 
Old Red Sandstone
and Devonian.
  Old Red
Sandstone,
or
Devonian
Beds.
  Upper Devonian or Barnstaple and Marwood Beds, with Petherwin Limestone, in N.E. Cornwall.
Middle Devonian or Ilfracombe Beds, with Fossiliferous Limestones and Cornstones.
Lower Devonian, or Lynton Beds.
 
  Wales and Central England.   Lake District.
 
LOWER
PALÆO-
ZOIC.
Age of
Crusta-
ceans ond
Molluscs,
or
Malacozoic
Epoch.
  Silurian.   Upper
Silurian.
    Tilestones (Passage Beds)   Kirkby Moor Flags.
 
Ludlow
Beds
  Upper Ludlow Beds (with Bone Bed)
 
Aymestry Limestone   Bannisdale Beds.
Lower Ludlow Beds
 
Wenlock
Beds
  Wenlock Limestone
Wenlock Shale, Sandstone, and Flags
 
Woolhope Limestone and Shale   Coniston Grits and Flags.
Stockdale Slates.
Denbighshire Grits, Shales, Slates, and Flags
 
  Tarannon Shale (Pale Slates).
 
Llandovery
Beds
  Upper Llandovery Rocks.
(May Hill Sandstone).
(Pentamerus Beds).
Lower Llandovery Rocks.
 
Lower
Silurian.
  Caradoc,
or
Bala Beds.
  Caradoc and Bala Beds.   Coniston Limestone, Bala (Limestone and Shale)
Skiddaw Slates.
(Sandstones often shelly, with Bala Limestone, Shale, and Slate)
 
Llandeilo   Llandeilo Flags and Limestone, &c.
Tremadoc Slates.
Lingula
Beds
Lingula Flags. (Primordial Zone of Barrande).
 
EOZOIC.   Cambrian.   Cambrian   Harlech Grits, &c.
Purple Slates and Grits (St. David's).
Llanberis Grits and Slates.
Longmynd Rocks.
Red Sandstone and Conglomerate (Scotland).
 
Laurentian   Fundamental Gneiss of the Outer Hebrides and of the N.W. coast of Scotland, &c., containing the oldest known fossil, Eozoon Canadense.

INDEX.