STRATIFIED OR NEPTUNIAN ROCKS. CLASS II.-TRANSITION ROCKS. FORMATION OF TALCOSE AND QUARTZOSE ROCKS, AND OF CLAY-SLATE.- Fossils very scarce. Short beds of rocks UNSTRATIFIED CRYSTALLINE OR IGNEOUS ROCKS. Granite-porphyritic dome-like masses, bed-rarely with globular imbedded masses (Island of Corsica). Hyperstenic sienite or selagite-dome-like or imbedded Iron-glance-slate (Bra- Augite rock,-dome-like or zil and Bavaria). cylindrical masses, and Elvan, Corn- many minerals imbedded, as N. B. A breccia composed of gra panies this rock (Port de L'herz). N. B. Lievrite, axinite, octahedrite, in veins in the slaty Network of metalliferous veins in the slaty and un- UNSTRATIFIED CRYSTALLINE OR IGNEOUS ROCKS. dome-like masses, bed-like veins (Scotland), and small porphyritic veins (Scotland, Norway, even in limestone containing shells of this latter country). metalliferous (Zinnwald), dome-like, imbedded, or cylindrical masses, {dome-like or imbedded masses (Scotland), veins and porphyriticsmall veins (Scotland, Norway). CLASS II.-TRANSITION ROCKS.—Continued. Terrestrial Monocotyledonous vegetables. Granite, Sienite, Near the granite or sienite, masses of Hornfels or Horn nate or short beds of sparry iron Limestone, compact, with ore (Styria), small spar-. in part con ry veins verted into (Hartz). Dolomite,. . . compact, with Encrinites. rock (Hartz, zirconiferous, Norway, Scotland. Diabase or greenstone. Hyperstenic sienite or selagite Brittany), and Variolite, S.W. Scotland, Euphotide, of Schorliferous Serpentine, Quartz (Hartz). Porphyry, Kidney-shaped masses. dome-like or kidney-shaped masses or veins (Scotland, Py- amygdaloidal, with epidote, quartz, and short beds (Prague), and Blatterstein (Rhenane, Westphalia), Sveins (England). augitic. Porphyry-breccia, Trap-breccia, short beds united with the porphyry or trap Network of metalliferous veins, in stratified and unstratified (Bohemia). Compact limestone, fetid (W. borders of Rhine). It is the only deposit which contains the true slate and pitch caking coal in great abundance. Red sandstone (inferior red conglomerate of the Vosges and Black Forest, of the Thuringerwald): it does not exist on the north side of the Pyrenees. New Red Sandstone of Buckland. Marly whitish sandstone (Weissliegende); (Chessy copper sandstone? some geologists placet among the red marl); Russian copper sandstone; chrome oxide. with the arena- Fishes were in abundance during this period. whole period. Pseudo-volcanic Rocks. pitchstone-porphy (Arran), and imbedded masses(Trebischthal). (dome-like masses (Edinburgh, imbedded masses.-N. B. Up- short beds, bed-like veins, Edinburgh and veins, Neptunian rocks are occasion- semi-vitreous,...imbedded masses or short beds (Palatinate of the Rhine). Porphyry-breccia, fine var. Thonstein, Trap-breccia, short beds united with the porphyry, or short N. B. Great deposite of agates, and some few zeolites, as stilbite, Network of metalliferous veins, and small veins; mercury, &c.-Last limit of cobalt-ore, and crystallised gray man ganese-ore. The Weissliegende establish in Northern Germany a transition between the sandstone and the zechstein (Wettin). CLASS III.-SECONDARY OR FLETZ ROCKS,-Continued. II. FIRST FLETZ LIMESTONE FORMATION.-Synon. Zechstein, Calcaire alpin; UNSTRATIFIED CRYSTALLINE OR Cellular or earthy earthy. breccia-like. Gypsum. Germans. Connected with the red marl by alternations and passages. NORTHERN Magnesian lime- Compact Zechstein, stone more or less & without small granular SOUTHERN without shells, petrifactions. Calcareous blackish marls (Vicentin). compact & crack-Limestone or Dolo ed. metalliferous. compact and cracked (Idria). nite. Existing, perhaps, VOL. X. H III. SECOND FLETZ SANDSTONE FORMATION, OR VARIEGATED OR SALIFEROUS Terrestrial monocotyledons and dicotyledons, many marine plants. Mollusca, or Zoophyte only in the upper part (Wieliczka, Soultz in Alsace). N. B. Sandstone cracked, vitrified, or with its color changed at the contact with Salt-springs Salt-springs, salt disseminatbeds (Lorraine). salt-beds (Castile). and beds. ed, and in beds (Bex). In all these different countries, the upper sandstones are connected with the following formation of Muschelkalk, excepting in England. This formation occurs in Calabria, Sicily, Persia, and in North and South America. |