ne
LetBes “EARTH SCIENCES
na
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.
wren
:
cology|‘and“Hydrology te.
.
heralso to abstracts Sotrs and 39784.
Le
Aer
ee
,
“
cog x ir1D-26724) DISTRIBUTION OF RADIONUCLIDES IN
for 20 min or by allowing the thermoluminescent decay to progress
for an appropriate length af time. For the two soils examined. this
time was about 58 and 168 hrs. The pre-readout post-irradiation
heating regimen (100°C for 10 min} sometimes used for TLD-100
and TLD-2060 dosimeters did not eliminate the effect of tempera-
bbe,
D. W.; Glenn,
L> tGeological
'
or
Resourees
Div).J;‘ae
13eeDep.Nts.
tland . ‘Oreg.
38600
‘TTOMSEDIMENTS OF THE COLUMBIA RIVER ESTUARY,
ture during irradiation. (auth)
gtinly‘was made £ tissftetrfbution 6f'radionuctides, produced
A
:
:
AERIAL RADIOLOGICAL SURVEYING OF NUCLEAR
7s 1Wrltcke AE eTet a
i by the neutron aétivation of natltrally occurring stable
ents a chemicaladditives in nuclear reactor coolant water,
pat Vex ee Ne
Trans, Amer, Nucl. Soc.; 14: No. 1, 65(Jun 1971), oe
From 17th Annual Meeting of the American Nuclear
Society:
@ bottom|‘sediments of the ‘Columbia River estuary. In situ
Boston, Mass.
dss gamma‘radiation varies over ‘iseventyfold range and gen-
,
,
(13 Jun 1971)"
.
See CONF-71 0606. far
‘
Soclety;
ally corrélates ‘with the total concentration of individually mea~
red radionuctides’ih saa Samples, The micst abundant ramiclides: measured|in sainples from the eatuary are "Cr, Zn,
39601
RECONNAISSANCE STUDY OF URANIUM IN TEE
SOUTH PLATTE RIVER, COLORADO. Boberg, Walter W.
(Conoco Uranium Exploration. Casper, Wyo.}; Runnells, Donald D
on)in surficial sédimeht are approximately 6.2 and 2.2 times,
spectively, greater’ than the édncentration of naturallycurring ‘ K, which averagés about 14 picocuries per gram of
and sedimentary rocks. The water is a sodium—calcium— sulfatc—
ty #s8e; MRu, Mn, “Co, andzr—4Nb. Concentrations of tC.
Econ. Geol. 66: 435-50(May 1971).
The South Platte River in Colorado drains areas of crystalline
ent; the other measured 4adionuclides are substantially lesa
chloride type throughoutits length of flow in Colorado. The con-
ant. Thetotal amountof. measured radiodetivity (excluding
centration of uranium in the water of the South Platte during the
yin the sediment columnbeneath thebed surface ranges from
ant d.06 fo. 15 “mmicrocuries |per square.foot., .HM. )
winter of 1969 to 1970 ranged from 5 ppB to 67 ppB, makingit
anomalously rich in uranium in comparison with most other rivera
th y
of the world, The concentration of uranium increases downstream,
97 BlieRStd)”MICROSCOPICEEXAMINATION OF:
‘DEFORMEDAND LABORATORY-DEFORMED WAGON WHEEL
KS, “Borg, L Yi :{California Univ,, Livermore. Lawrence
diation Lab,}, 28 Jan 1971,
p, NTIS, + ~,,
Contract W-7405~~eng-48,
te
gs
in contrast to the decrease in uranium concentration observed in
other rivers that drain areas with known deposits of uranium. The
South Platte contains a higher concentration of uranium than either
L5p,
the Colorado or North Platte rivers, despite the fact that the latter
two rivers drain ore-producing areas of the United States. It is
lfkely that most of the uranium in the South, Platte is contributed
by uraniferoua coal seams in the Cretaceous Laramie Formation
and by uranium-rich black shales in the Cretaceous Pierre Formation. The possibility that undiscovered deposits of uranium ore
are present in the drainage basin of the South Platte cannot be excluded, but no major deposits are known. Use of the parameter
“ineremental areal uranium-tcad’’ permits certain portions of the
drainage basin to be recognized as contributors of anomalously
The mineralogic maket, of shales; siltstones, and wackea (meim-~grained sands); grain size; modal analygea; and number of
ain contacts per quartz or chertgrain are given for core sam- &
28 taken from the gas-bearing horizon of Wagon. Wheel Hole No. 1
ar Pinedale Wyoming. In contrast to Fock at comparable horidsat the,Gasbuggysite near’Farmington, New Mexico,they conn more SiO, and calette, fawer rock fragments, and less clay.
igon Wheel wackes are doarger grained, and their particlea are
3§.angular. ‘They have more than twice as many grain contacts
‘
tpgrain, or potential sites-of local stress concentration per unit’
lume, which suggests that failure is more Hkely to be associated
large amounts of uranium to the river. In the headwaters of the
Platte the incremental area] uranium-load is a low 0.00018
~ South
kg U/day/km’, whereas for the Increment of drainage between
Weldona and Balzac, Colorado, the [Incremental areal uranium-
th microfracturing than in the case of Gasbuggy rock. Wagon |
- load is 6.016 kg U/day/km?. This parameter may be useful for
iéel wackes deformed in one-dimensional strain teste and triial experiments were examined microscopically. No micro-**
idturing was detected in the samples deformed ih one=dimen~
mal tests where ‘che mean stress ranged up to 5.87 kbar,
hydrogeochemical prospecting for uraniwm ore in other areas.
The concentration of uranium in the interstitial water of the alluvium in cutoff meanders varies seasonally, but there is no
clear-cut evidence for precipitation of uranium minerals. Measurements of Eh, pH, and total vanadium in interstitial waters
indicate that neither uraninite, coffinite, nor carnotite is stable.
axial tests at mean pressures up to 9.61 kbar, brittle Etre 1s
iracterized by the development of single shear faults surrounded
highly localized zones of fracturing; transitional failure ia as-~
ulated with broad zones of shear failure and pervasive micro.cturing of the whole specimen; and ductile failure is character-
fauth)
39602
“rock and’ subsequent cataclagtic flow lintercrystalline move-~
Watters, R, L.; Yaney, N. D.
‘d by the demolition of all mechanically atrong components of
‘At and rotation)., Plasticity of the individual minerals (intra-
vetalline slip and twinning) contributes very little fo the overall
sility of the deformed specimens. (auth)
SOIL.
°
(Colorado State Univ.. Fort Collins);
1971}.
3".
f
Health Phys.; 20:
425-9(Apr
Uniform contamination of a Rocky Mountain watershed with
2!°bo0, from a SNAP generator would find the major contamina-
598 ns EFFECTOF LIMING OF SOLL oN THE DIFFUSION
WE OF gr Prokhorov,V, Mu: Frid, A. 8.; Ryzhinskii, M.
{Agrophysical Inst., Leningrad). Agrokhimlyas 73 No, 2,
‘iis70), tin Russian); "37: eAPee.
219P90, MOVEMENT IN A MOUNTAIN WATERSHED
Hansen, W. R.
cc Ba setepe
Samples ofsoil from the Leningrad areawere acidified with,"
- tion retained by thesoil. A simulated snow-melt run-off experiment was conducted with a mountain Podzol soil from the
' Fraser Alpine Area, Colorado. 7!"PoO, was applied to the litter
layer as a point sourceone meter from water collection vessels
at the base ofa 30% slope. Cores from the soil on which. one
. washedwith distilled water, and treated with various ratiog,*' , mean annual rainfall {18.6 in.) of Ice stn melted indicated both
20. It wag tound that withamounta of CaO up to80% of the “* ‘vertical and horizontal movementof ?!"Po0, into the sojl. The
olytip adidity the coefficient of, diffusion of “sr‘decreased by,
‘«
y* ,Tun-off water collected at the base of the slope at the bottom of
enya, {the Hitter layer and A, horizon indicated only 107" of the original
5.-“For CaO doses greater jhan 90% of the
Es: Of 1)
od,
t
ee are activity moved through these soil horizong. Data from soil cores
coe
ty me Peeeettigtent bncreate’.fersaut Aya eohge “ershe
_ were used to predict the movement of a uniform deposition of
599 +." INPLUENCE OF PEMPERATURE DURING’ ATE os a“2109p00, toa stream, The equatfons derived indicate only the first
|
creIRMADIATION PERIOD ON THE SUBSEQUENT THER
,- 50 em bordering 4 stream contribute significant contamina fonto
‘
XLUMINESCENCE-OF*‘SOILS AND LiF AND CaF, DOSIMETERS, ihe, (auth) (UK)
.
shita, H.pHamilton, M.-_ (Waly. of California,’Los Angeles),
dtract AT(04~1}-Geu-12.. Sct] Scl.z 111: No. 6, 353-“Stun a
wf
Be ire aD oe OMG ES ea
é influence’ of température (0° to 70°C} during the ‘exposure*“
we pie ga ge he
=
Bo e
ta
,
. ‘Meteorology-o
mw
L-
cd to “Co garoma radiation‘on the ‘thermoluminescence of por! “Refer also to abstracts 39600 and 39851. 7
2soi13 and LIF (TLD-160) and CaF, (TLO-260) dosimeters -"
soaumnined. The.thermoluminescenos. of these materiais was
.
.. "39603
“*
tee
|
aL
ee
| (GRH/NERHL-~70-3) “INVESTIGATION OF AIRBORNE
@ctec ky their temmperature-during lrradiation. 'Theaffect of : .
RADIOACTIVE EFFLUENT FROM AN OPERATING NUCLEAR
Aperature during trradiatidn wag “glimiuated in the soils hy
_, 7. FUEL REPROCESSING PLANT. Cochran, J. A.; Brith, D, C.:
og & pre-readout Rost-trradiation heating regimen of 190° Cc...
Magno, P, J.; Shleien, 3. (Bureau of Radiological Health, Win:
4
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