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CLASS II.-TRANSITION ROCKS.

STRATIFIED OR NEPTUNIAN ROCKS.

Formation of TALcose AND QUARTzose Rocks, AND of CLAY-slate.—
Ex.: Alps, Pyrenees, Ardennes, Brittany, Bohemia, Scotland, &c.

s Mica-slate, - Y
Talc-slate, -
quartziferous, some crystalline mi-
--- Chlorite-slate . . . . . . . . { nerals, magnetic iron-
Chief quartziferous, retty often Core, &c.
rocks, J Quartz granular, ere and
different 3 rock, & compact, there, evi-
varieties common, denly arena-
of Gneiss, } talcose, ceous or frag- - -
granitic, mentary. some crystalline mi-
Clay-slate, . . - - - {: hollow-spar,
|- quartziferous, iron-pyrites, dipyre.
s Whet-slate.
Flinty-slate."
Alum-slate.
Slate with black chalk or anthracite.—
N. B. Here first trace of coaly mat-
ter.
Calcareous clay-slate o:
Subordi- granular (Pyrenees, Ap-K some crystalline mi-
nate, or pennines, Alps). } nerals, hornblende,au-
shortbeds. subgranular (Scotland) Cigite, garnet, &c.
of Limestone, -o compact, with small (some crystalline mi-
sparry veins, . . {o felspar (Coldu
brecciated (Alps, Ap-C Bonhomme).
pennines). lli -
- nular. some crystalline mi-
Dolomite, 3. act }: ..., ve-
Gypsum (Alps of Savoy, 5 granular. & suvian, &c.
U Pyrenees, Tarascon), U compact.

N. B. Diamond geognostical position. J

This formation passes into the following.

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tertiary basalt

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cellular, small veins (Erzge.) veins (Arran).
graphic. . N. B. Imbedded and
with pinite. changed slaty rock.

Sienite—imbedded masses, bed-like veins, large and small veins
Diabase (Ophite of the Pyrenees), especially in short beds
or bed-like veins, and veins.
globular imbedded masses (Island of Corsica).
Hyperstenic sienite or selagite—dome-like or imbedded
masses, (Scotland, England, Germany), and veins (Scot).
Diallage rock or Euphotide,-dome-like or imbedded masses
(Appennines).
Serpentine,—dome-like or (many minerals imbedded, as
{; augite, chromate of
iron, and chrysoprase.

imbedded masses, and
bed-like veins,

N. B. A breccia composed of gra-
nular limestone and augite accom-
panies this rock (Port de L'herz).

Augite rock,-dome-like or %
cylindrical masses, and
veins (Pyren. Piedmont,

- bed-like veins, and veins S N.B. Sometimes
Polo. of the age of recent grey- Uslate altered at
:* wacke (Vendée, Erzgeb. (the contact(Tre-
. . . Cornwall.) -- - bischthal).
N. B. Lievrite, aximite, octahedrite, in veins in the slaty
rocks. -

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CLASS II.-TRANSITION ROCKs.—Continued.

Terrestrial Monocotyledomous vegetables.

Fishes.

Pseudovolcanic

Rocks.

Near the granite or sienite, masses of Hornfels or Hornrock (Hartz, S.W. Scotland, Brittany), and of Schorliferous Quartz (Hartz).

-: glandular,

Unstratified CRYSTALLINE OR
IGNEOUS ROCKS. .

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dome-like masses, bed-like veins (Scotland), and small *{: (Scotland, Norway, even in limestone containing shells of this latter country).

metalliferous (Zinnwald), dome-like, inbedded, or cylindrical masses, N. B. Uppermost limit of the Topaz.

dome-like or imbedded masses (Scotland), veins and

small veins (Scotland, Norway).
zirconiferous, Norway, Scotland.

Diabase or greenstone.

Hyperstenic sienite or selagite . . . . Kidney-shaped masses.

Sienite, porphyritic

:*::::: or kidney-shaped masses or veins (Scotland, Py> Serpentine, renees, Hartz).

N. B. Greywacke altered where in contact with porphyry, and sometimes imbedded in porphyry (Vorospatak, Lapos Banya in Transylvania); greywacke with bituminous wood and auriferous-pyrites, Vorospatak).

Porphyry, globular,

dome-like or im-
bedded masses,
short beds, bed-
earthy, like veins (Eng-
- land), and veins.
Trap rocks.
amygdaloidal, with epidote, quartz, and
calcareous-spar,
Blatterstein (Rhenane, Westphalia),
augitic.

short beds (Prague), and veins (England).

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masses, or short true Neptunian beds in the slaty Trap-breccia,

short beds united with the porphyry or trap }: and then passing into these (England, Vosges), and sometimes shelly (Vosges). .*. Network of metalliferous veins, in stratified and unstratified rocks; in these last, partly of contemporaneous formation;–red manganese-ore, tellurium.—Last limit of native gold, tin, bismuth, antimony, scheelium, arsenic ores, pharma\- colite, and auriferous-pyrites.

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(Chessy copper sandstone? some geologists place’t among the red marl); Russian copper sandstone; chrome oxide.

CLASS III.-SECONDARY on FLOETZ ROCKS.

Abundance
of terrestria,
monocotyle-
donous vege-
tables, some
dicotyledonous.
Absence of
marine remains.
Beds full Q
bivalve shells,
more like fresh-
water than salt-
water shells.

Fishes were in
abundance dur-
ing this period.

Pseudo-vol-
canic Rocks.

Porphyry de- )
posits begin
with the grey-
wacke, and fi-
nish with the
secondary red
sandstone or
even later.
This is made
evident by the
alternations of
porphyry and
trap rocks or
trap breccia
with the arena-
ceous Neptu-
nian deposits
during this
whole period.

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Silesia), veins and bed

N. B. Neptunian
rocks are occasion-

- - like veins (Scotland). ally altered where
* * ... "... o.o. o: o
- rta an -
pitchstone-porphy- or to: e }. instance, coal
ry, is reduced to coke
Trap, ... s dome-like masses (Edinburgh, or graphite; sand-
augitic, - the Palatinate). stone is indurated,
wacke, imbedded masses.—N. B. Up- and slate-clay (some
feldspathic, per limit of the Peridot times with garnets,
earthy, h oimbo) as in Anglesea), in-
Short beds durated
bed-like *} Edinburgh
and veins
semi-vitreous... imbedded masses or short beds (Palatinate of the
Rhine).
- ia (short beds united with the porphyry, or short
orro. true or Neptunian beds in the anoe, and then
stein. passing into these or trap masses, and con-
Trap-breccia taining sometimes vegetable impressions (Upper
>

Saxony).

N. B. Great deposite of agates, and some few zeolites, as stilbite, and mesotype.

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The Weissliegende establish in Northern Germany a transition between the sandstone and the zechstein (Wettin). CLASS III-SECONDARY OR FLOETZ ROCKS,-Continued.

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STRATIFIED OR NEPTUNIAN ROCKS. II, First Floerz LIMsstone ForMAtion.—Synon. Zechstein, Calcaire alpin; a part of the Hochbirge Kalk of Escher; the Hochgebirge Kalk of

Uttinger.

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Gypsum.
Connected with the red marl by alternations and passages.

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UNSTRATIFIED CRYSTALLINE On
IGNEOUS ROCKS,
Marine Fossils pretty rare.—Amphibious Animals,
Insects, Algacites.—Upper limit of Productus.

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III. Second Floetz Sandstone ForMAtros, or VARIEGAten of SALIFERous
Sandstone.—Syn. Greshouiller, Beud., and of Boué's Mem. sur l'Allemagne;
Grauwacke of Alps of many geologists; Old Molassein part, in vicinity of Alps.

Terrestrial monocotyledons and dicotyledons, many marine plants o
Molluscae, or Zoophytae only in the upper part (Wieliczka, &
Soultz in Alsace).

Poland AND - PyRenees and ENGLAND N. Alps, CARPAthians, and o 5 : 5
Germany. - CARPATHIANs. FRANCE. Spain. AND IREland. APPENNINEs. Southern Alps. -> 2. §
Variegated sandstone (BunterGreywacke-like Red small-grained Variegated marl, Red marl, with (Marly coarse gray-Variegated sand- || 3
Sandstein). Sandstone. sandstone of the with gypsum and gypsum and sand- } fine }: stone. = 5 :
Variegated marl, with gyp-Marls, with al- Vosges, of the salt (St. Gisond, salt-beds. stone, like Variegated indu- | * go
sum and salt.—N. B. Up- gacites. Aveyron, and Nor- Arragon, Castile, (Austria, Allgau, Tri- rated marl, with i = 3; 3
permost limit of Anhy-Compact gray mandy? and Cordona). este, Florence,Voirons). gypsum. - 3
drite. limestone. Variegated marl, Compact Q (Dax) Marls, with marine Calcare- # = | f : :
squartzy sandstone Arenaceous with gypsum and limestone, (in the # plants (syn. Pietrase- ous marl, / 3.3 | * ##
(Westphalia, Saxony) limestone. salt (Alsace, Lor-Globular (upper 3 rena and forte of Tus-Compact = ~ | # 3 #
Calcareous Wirtem- raine). limestone, J part. 3-3 cany (Mascigno). lime- #3 5 = 5
marl berg, in Calcareous marl. É Compact gray-) # *. stone, g = | E
Compact the up- Compact : lish or blackish | # * Shelly marly sand- ~~~
limestone per R. *] in the limestone, * stone. # q)
Globularlimestone(Rog- Globular udde Compact yel- > *, *, *, Greywacke-like 2 tr;
genstein), Salzsee, in magnesian o r lowish ruini- # = ă. sandstone or con- |.2 of
part magnesian. limestone | Poo" form lime- # 5 - glomerate (Agor- | H = 3 O
Compact magnesian Vic.) stone, ă ă ăl do), sometimes | ### t-
limestone (Coburg). UArenaceous limestone. calcareous o, o
Argillaceous hy-O Salz- Very coarse conglomerate, (Idria); only in # = O
drate of iron s see. sometimes calcareous (All- the eastern part | E o Q
- Micaceous iron- (Pyr- gau, Montserrat). of north side of £ 3 -:

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Salt-springs and salt much

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In all these different countries, the upper sandstones are connected with the following formation of Muschelkalk, excepting in in Calabria, Sicily, Persia, and in North and South America.

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