Mineral Point tribune. [volume] (Mineral Point, Wis.) 1854-1858, 1854-04-06
TFrom the Report Of Prof Daniels ]
LEAD REGION OF WISCONSIN.
NrsrnER 2-C0afinued.

NusrnER 2-Coatinued.
That II mast have originated under similar
circumstances to tie Iimestones with which it is
associated, is proved by the fact that it contains
tae same fossils, bat IT is evident that local
agency must have been active in forming depos
it $ extensive and anomalous at this point, while
it occurs only in small quantities elsewhere. The
abundance Of fossil corals found upon these
noaui5 remind US Of the scattered fragments about
a modern coral reef They prove that these
mounds were once the sites OF similar operations.
where tae li.t,e coral animals reared their stony
architec. ire beneath an ocean whose waters COW
cred the whole land Under this ocean the beds
y. limestone when am describing, were slowly
formed partly By the deposition Of lime, held in
ISOLATION and partly BY the slow growth of corals
and shells. whose curious and beautiful forms hey
contain in such abundance.
NcNHEa g.
Underneath the coraline beds, we find shale
bed. Itis r7-sf largely developed in the south
west portion Of the district. and gradually thns
ou. towards lie north and east. II Fairpay it
a.,llus thickness Of about twelve feet. Its gen
evaI texture Is soft and crumblng. Its color is
l.ac green. ard sometimes brown or yellow. The
upper portion Of the bed contains circular nodules
resembling clay stones, ana consisting mainly Of
.-al oxide. CaIcarcous uodulss Of 4 leEtcular
form are also found cemeute1 together in such
eaaa.igy as 10 form nearly the whole bulk Of some
= 79''1i'''-1
1..-..Is....s- -,
-.
' ,'-- -'''-'' -, : 80
.'ss ''.''' Icy - c''''s'. = -'-'-'
-.
-.
-..,...f..-,-...1 -.
-,.,..-, -. -
"..' O. =
II i7 a singular iie'' 'Haf an 'aese l0ssi's arc
eEe5e.a5'} minute = coz. .l'ieI WIN ''.o@s %
7-'5'.'' 'sl's&' -'-'.- '' VIC o''9
-'5 'a4'''95A-@ s--.'s - '-1 ''1'
measuring e.,-- SIX i-7e III '1"-." ~''d '"' i0e'
ia e-'s-tsi lese represented Dy ioFi'-. rafeiy
1,l's-s' ioef l"e'-7 II ls''s'n' @'o one llio II
-~ enc @1'l3 OF .le gray i.'ie''ol'e -
'..-a tNo H.'1e7 q" ieHS'"' "iii's 'l@' u 'l-e
s-a.e IS Only oAe-5A'Ia oi an men long "A SIM
l.ar a..afa".ol seems 70 have affected every form
o. life ooasaia.iH iHg as 1t WERE fossil L''lipot
a-+ g "aae He Z" -'1ilIh" HAs 1s9oi ''e'
. .-e -azn oi a"af.s among Tue hsHes OF 'le
o.a 'a' #iat7,o.'e.
---s deposit eS'eis's across 'Ae N'lsSlsSPPi iH''
-s1a aad south into Illinois 1t offers 10 the nat
u7a..s, n.-F ileid OF laresitsaii9n- Fepse'e WIN
ia.aEs. ala Instruction IN tbs BRET notice can
h--a.- o'l attention 70 the TACT Of its existence
o4t AaE- at some future time to present fuller
o5ronat 90 i ana ITS wonderful fossils have
ea.t if .5r tac present tAe "uucuia shale, from
l-- --4a, numbers or lls fossil which il contains
E..nEn T.
Nez succeeds The sray Limestone. This is the
r-s.-...- -..-..... --.- Of 7la mines lis u12er
-. -. -,
- pa d" ~ -'''-' "-''''' -'i-'
few fossils t.e most common OF which IS the
lqea.r I..r..s-se er AIr. OwExs. Ths black oxide
or,-,... ..,.. -.,..,, a., -,--f,.e. of tho Law
s's "l.- 's~&..'9l maj >i5N EeSs'l' '''s 'e ueiI
cate uElucatngF OF the MOSES These layers form
what is called tla cap rock % the perpendicular
veins .,r western rort;o7 Of the mines. The
..,....- ,...----,-r., t,i.,;.L ,--,,. .clor ~ g,
mere open texture anu "Ae" examined o'osey
arc i3g"@ ~ consist oI minute crystals ol caFoof-
ate OF tae This rock often contains sulphuTet
oIuoa. b9 decomposition OF which it assumes