Mineral Point tribune. [volume] (Mineral Point, Wis.) 1854-1858, 1854-04-13
From the Report Of Prof Daniels ]
LPlp REGION OF WISCONSIN,.
Confined }


N-EBER ..
Tire blue limestone lies Immediately below that
,a,, described It consists Of soft shales inter
s-rat.fei with very compact limestone. 1t is
generally saiu teidsd, Of blue or brown color
zaaa recently fractured, and intersected with nu-
r.eraus Joints It IS remarkable for he frequent
alienation oil lis strata, the vertical thickness of
tev ilet often presenting layers widely differing
fg5u each other in texture.
Tie fossils Of tie blue limestone are very abun-
g.. ard well preserved. They are mainly shells,
cr-4fs and crustacea, with frequent impressions
arai5s or sea-weeds5 ramityiug over the sur
Fl & s. layers
I4s lower layers are thicker and less fossiIife-
rs They have smooth couchoidaI fracture.
q aae, compact texture, and take a very good pol
forming an excellent building stone. The
beautiful eiaace recently erected at Platteville for
Seminary. Is mostly constructed from this stone,
Obtained from NcCoRD'5 quarry No f,:nts are
.oard u ,ae blue limestone. This rock IS often
.aersoetei by veins Of calc spar and cavities oc-
car lined with beautiful crystals of the same
stance. This rock covers but a small portion
81 ..1 surface. having only a narrow out-crop
s--as- from 20 to 100 feet. 1t Is thickest in the
northwest, near the mouth Of the Wisconsin and
bit toward the south and east Il is un-
--lIy tie equivalent ol the blue limestone 50
tal-ly developed at Cincinnati Ohio and
...s. with tie Trenton limestone Of the New.
NCzaER 6.
E.,..v .ae blue limestone. ,ve find = rock differ
-t .Ier. from Il in texture and general caarac
-s. Its ordinary color, where weathered, is light
ean5r or bat Its lntersected bv large assures.
resembling those Of the grev limestone Its fos-
LIS are generally casts. II weathers with a
-a5otb. e.cn surface It is known as the quar-
rv Gacz al Mineral Point. where II has been
gsel III Tie erection Of several buildings Its
u.aa. thickness is about % feet. but It thickens
-ra.ta..v toward the east. Believing it to be
l....ral s,l-h tie rock represented BY Mr LOCKE.
..a s.e.an at Prairie du Chen. and called BY
u barcofored limestone" have chosen
TIA. name
NrrREr
Bsrv tie bafTcolored limestone. sets in a bed
a..4.r-.sae from 40 10 100 feer tbic, Il -oD-
.s Is. coarse graips of ouar,zoze sand. cemented
-.#. liz with iron and carhona-e cf lime
I.s REVEALING color Is rel bu+ Sometimes II Is
--v or vHl-e. darker and lighter bands freonept-
Tie lines Of strl-iicatiop are verv in.
.....arl.aa.i sometimes no races of Them apnear
T. i..r.r h,y ya-.i,sI f,es,-es into Immense
s, ~. -, ,.--.,- r--u- -, g.. -
.-...-.-.-t -, - =. -, 49,. ~,
r. r..s s-.I.,,ns : ,bi,kest in the oor,,
..-.....-r,,-. ~
s--r 49,, -. pI,.a
-''' - - 80" =, o., o'.'s
l..y' ,'''- At '''' '''''''' O','' 5'''
''''- . '''''
~. .,'.-.e,
.,,r. -r.. 49, -. - - NJ
a..
,...- ,l t.,l 49,. -,
1.,. .,,-.rrs ,n4 thickness In H. n,,s- ,,,-t
....---.r....,.- ,r -...s-.,,,, ,,...- ~ 1,,-z
a7e ,as... and OF light gray color. Flint often
f Angular fragments, sometimes IN layers, and
o7ca-.aa-,y in The form of q silicious oo.ite,
E. 81,