Amarillo daily news. [volume] (Amarillo, Tex.) 19??-current, 1920-07-25
REPORT ON GEOLOGICAL
SURVEY TARRANT COUNTY
ISSUED BY UNIVERSITY


lpgy and Technology q, the Uniycrsty
of Texas un The Geology of TarTaut
County" complete account - giVtr
Of the structural and Typographical
features # thnt county rTs surv,,
was made by W VI winton and ". $
Adkins under the direction oi j. A.
t'ddcu. head II the hsrcnu. In gen
,ral description 81 the area covered 10y
the survey the bull'tin savs
"Tairant county ~ IN IA, third tie.
Il counties al thu eis. central province
LET T,NaF. and b. in,ludcd within rhe
h'lt Il dcuoS, population in tue stat.
'ho estimated population e the county
January. 1918. n about liN 900. ol
which $50. 900 - concentrated IN Tia,
city 81 Font Worth nhi. city, lioo the
citirs ~ Dallas. waco. Austin and san
Antonio los un The outCrop of the cal
c1rculs formations If the cictacrou-
system Limestone areas have always
been the areas ui tho greatest indus
irirl development md II. uccumpani'
mcnt ct concentrated population; and
1T limosiuu' areas thuyc ol the crctac,
Gus have Ia thc past been the most
favorable Many writers have com.
mcntcd "a the curious relationship hC'
tween ccnt,rs uf civilization and the
nutcrops of "rctiC"ous rocks In fact.
oven today q map - the world showing
the arcay 4 greatest human develop
tncnt would bear striking reese mblano"
a. the map IT the worlds out crops 81
crctacoous rocks .lany explanations
have been attempted Of this suggested
conncctltn. The ample facts seem
CrctaccaiE iimc.tuncs furnish
an abundant water supply u firm sub
stratum. break down i.i:o rich soil. fur.
nish material Tor ~" construction -
roads and buildings. and by their mode
" wcathering furnish land surface
which In apcrfcct 'omprcmisc between
the level surface most favorable to the
development Of Elaborate transporta.
ton. and the rolling surface most favor
able for perfect drainage.
"Tarrant county opi,omlzes In way
tine agricultural industries Of the state.
The western part of the county IN IN
the rolling shortgrass prairie region ~
weyt Texas. which IN typical grazing
land while the eastern part Ut the
county ~ made up of timhcrcd country
aud bottom lands. including typSal
cotton farming country. In biological
sense the county lies NJ the junction o'
the husIi dad sni ARID t<.isions oi the
lower Austral life zone. Its location
implies great MIXTURE Oi wild NE
10th plant and animal: and such con
iition exists. Besides this. the county
Hes AT what might hc considered III"
junction of life ZONES H. u north south
distribution. that ~. II contains life
forms which belong both L. the sub
tropical area and io the warmer tenn
pcratc zones. There II probably no
other region IN IN" state which shows
such u variety uf Wild life, especially
Il plant life. EXHIBITING blending 81
aemi arid with humid forms and tenn
pcrntc with subtropical forms
"Tnriant county lies roughly bctwecr
,onritud. W ~ degrees. Is minutes
Snd longitud, ". ~ degrees, 526 min
utes, aud latitude MAJ degrees. 1913 min
a,t,s and latitude y 81 degrees. 5s.a
minutes. giving Il au area ~ abnu,
900 sauarc miles. The magnetic DE-
,nnation atthr station ut the Chtc'I
Slater Ccest aud Gcodciic Survey on
the Texas Christian University campus
atF,rt Worth n 2 degrees IA minutes
cast On thu ordinary pocket compass
urrd Is hunters. hoy scOuis. and iield
rcologists. reading "a minimum ~
two degrees the icclina:ion " ten de-
grc,s t. thr east That II. when Tue
puck., compass ~ held 50 that the
needle points to ~ d,/ccs east. the
zero or ,.srth mark 4 the compass is
pnintinc L. the true aurth.
"Thc entire county " covered hN
,nrky belonging 20 single gculoeic''l
rrs-thc cretaceuus. about equally ~
,idrd hrtNccn luwHr croinc"'ns. 60
more properly cuminchln and upper
,tctacct ~. The mlcrlNinE rocks dl
,,ptIv toward IN" southeast tn" tn't'
lre had ch1lkv limcsto"vs. SOFT h'n"
,,op,s narls aud ri slt.dsiuu''. u
din at IN. strata gives IN general l"'n'
,.rptl,. slnpes on thu southeast 1d" ~
the uplands whor" The surface - th'
ground approximate thcdip ct TIE :"
deriving rccls md 1t gives rath'
ahrupt Slopes wu a." northwest side 81
'-i,t uplnrds VII g" thu SUCCESSIVE
HEDGES of the different formations
cucrg, from below the surface. Thi'
/. tine sn-calicd 'cucsta' typ, 1T t"poI
t,uhy. Despite it, recognizable nature
with th, gentle dip plans uu onc s"''
and steep bluffs IN the other side th'
fact musi BE- kept IN mind that In "'ah'
cases the dip plains are not true III.
40. ms. aud the abrupt bluffs are not d
way, the ends II formations
9TH, underlying geological forina
lu.g. aside from climatic factors are
tn, most important natural features -
determining N, collaboration at q
r,r,.n. and therefore. aiso. Its posi-
,ttlitic. Tor cultivation and IT, SUITABILITY
for "a deus, popullti"n. location Of hrg'
cities and ,th"t cultural developments
The highest poiu, 81 the county " ~
IN, western part where an elevation 81
o.o f,ri above sea level b. reached
The lowest puint o. w/rc IN TRINITY
lsNcr tasfrs out ~ ,n'. county tn th'
east This latter noint has an clcNa
ton & so feet. giving the entire cuuf'
IA Il maximum relief 81 Goo f,ci- u
general this 's represented hy a gradut
/ .loi,r To- the east. broken by th. west
tc.td facing cscarpmcnis. The cscatp
.u,uts arr steep and conspicuous. bat
tine much longer and gcntlvr 'asiei =
Slopes are not ~ rvadi!N noticed TIN
.irn from Foit Worth to Dallas hv ths
,aui moi,ilc pike h. decidedly duwnh,l
in Il sautircty. the fall being about 10,