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Show 388 DIAGHAM Shewm· g 1,1w ·re l u. tt' v e position w. hich the Plutonic and . Sedi-mentary Fo?·mations of diffe·rent ages may occupy ' (in illustration of TABLE I.) No. 01. 4 2 4 4, Recent atratn, 8. Tertiary atrntn. 2. Secondnry ltrntn, 1. Prlmnry• Blrata. 1. Primnry* plu· tonio. 2. Sccondory plutonic, a. Tcrlinry vtutouic. 4. Recent plutonic, In the above dm. gram an a tte•m r't is mado to shew .t he inverted' ortler i.n whic•h the seu.n nentary an cl P1 u to m' c formations may occur m the earths cru.s t, subtcr· . . . the lutonic like Sttperllosition in the sedimentary rocks, bemg fort 1te pmoosstht opna rmt charapc ten. sh.c ' o f a ncwe r •a ge . By aid of this illustration, and what .w e 'd . Cl 25 anti 26 the reauer will comprehend why so large n portion have sat m 111 P· ' d h th ore ancient of 0 f the plutonic rocks of later periods are concealed, an w y em , . this class have risen nearest to the Surface, so as t o 1l av e ueeu denuded 111 some •·egions and exposed to view. • Tl tc pn.m ary ",,o rma•t 'Jons here ml•ntionetl are thos. e, whether strntifi~!d or tm• sh'atificd, which are older than the carboniferous deposits. 389 TABLE II. Showing the Order of Superposition, or Chronological Succession, of the principal Sedimenta·ry Deposits or Groups of Strata in Europe. This Table is referred to in the Glossary, and includes the Secondary :Formations alluded to in this Work, llut uot described in detail. - Period• nnd Groups. B Names oflho principnl Members nnd gcnernl Mincrnl nllturc or I Somo or the Localities where lho the l?ormalion. Foml,ltion occurs. The deposits of this period are for the most part concealed under existing lakes o.nd seas. Consolidated sandy and gravtllly l>l:lds (a), travertin limestones (b), calcareous sandstones with brol<1m shelh1 (c), coral limestone, consisting of. corals, shells, &c. (d) MARINE. FuESUWATEa. a. Dtllta of the Rhone. b. Tivoli, and other parts of Italy. c. Shore of island of Guadaloupe. d. Coral reefs in Pacific, &c. Limestone, sands, clays, Sanustones, COil· g-lomerates, marls with gypsum ; containing ma1·ine fossils (a). Sands, clays, sand- a. Sicily, Ischia, Morea? stones, lignites, &c.; b. Colle in Tuscany. containing land and fre&hwaler fossils (b). do 1----~------------------r------------------+--------------------- ~ ~ c ~ ~ ~ ~ "'~ ~ 6;,3 ~ ... ~ Subapennine mm·l, Subapennine yellow sand, E11glislt 'crag,' and other deposits, as in B, containing marine fossils (a). Similar deposit~ to a. Subapennioo forma- B; containingla11d and tions, Perpignan, Nice, freshwater fossils (b). N orfulk and SufFolk. b. Ncar Sienna, &c. ~ 1-----L_________________ -------------------:---------------------- D Falun$ of tl1e Loire, nnu other deposits of similar mineral composition with B and C, containing marine fossils (a). Similar deposits to B and C: ; containing land anu freshwater fossils (b). a. Touraine, Bordeaux, Vallt•y of Bormicln, Superga near Turin, Basin of Vienna. b. Saucats, twtllve miles south of Bordeaux. |
