Plate 1. Geologic map of the Poison Creek 7.5-minute quadrangle, … · 2019-06-10 · 0 0 0 0 0 0...
Transcript of Plate 1. Geologic map of the Poison Creek 7.5-minute quadrangle, … · 2019-06-10 · 0 0 0 0 0 0...
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S p r i n g - S u n f l o w e r F l a t R d
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eek
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Fo l ey Creek
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F e n w i c k C an yon C re e k
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T h o u s a n dS p r i n g s
S I L V I E S R I V E R C A L D E R A
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8.41 ±0.16 Ma
6.82 ± 0.33 Ma
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UPPER CENOZOIC SURFICIAL DEPOSITS
UPPER CENOZOIC VOLCANIC AND SEDIMENTARY ROCKS
Angular unconformity to disconformity
UPPER MIOCENE VOLCANIC AND SEDIMENTARY ROCKS
LOWER PLEISTOCENE TO UPPER MIOCENE SEDIMENTARY ROCKS
EXPLANATION OF MAP UNITSSee Explanation of Map Units in the accompanying pamphlet for complete unit descriptions.
Ar/
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TIME-ROCK CHART
CEN
OZO
IC
QU
ATER
NAR
Y
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cene
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cene
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ene
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late
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early
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Location of whole-rock XRF geochemical analysissample; open circle where multiple data points overlap
D1514'
Cross section line
Normal fault — Thick solid line where accurately located, long-dashed where approximate, short-dashed where inferred, dotted where concealed, queried where identity orexistence questionable. Ball and bar on downthrown block
Contact — Solid line where accurately located, long-dashed where approximate, short-dashed where inferred, dotted where concealed, queried where identity or existence questionable
Caldera margin — Identity and existence certain, location concealed. Ticks pointinto caldera
Fault — Thick solid line where accurately located, long-dashed where approximate, short-dashed where inferred, dotted where concealed, queried where identity orexistence questionable
EXPLANATION OF SYMBOLS
8.41 ± 0.15 Ma Location of radiometric age sample,
age in millions of years (Ma)
Gently inclined (between 0 and 30 ) bedding, asdetermined remotely or from aerial photographs; showing approximate strike and direction of dip
2
A'A
Normal fault (in cross section) — Short-dashed line where inferred, dotted where approximate. Arrows show relative motion
!PG4
!
395
Road
U.S. highway
M Syncline — Thick solid line where accurately located, long-dashed where approximate, short-dashed where inferred, dotted where concealed, queried where identity orexistence questionable
Horizontal bedding, as determined remotely orfrom aerial photographs
119°0'0"W
119°0'0"W120°0'0"W
44°0'0"N 44°0'0"N
43°0'0"N 43°0'0"N
Frenchglen
Burns
Seneca
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HARNEY COUNTY
MalheurLakeHarney
Lake
USGS geologic mapping completed
DOGAMI geologic mapping completed
FY 2016 - 2019 EdMap project areas (Portland State University, Oregon)
FY 2018 DOGAMI STATEMAP (this study)
1. Big Canyon
4. Landing Creek5. Mosquito Flat6. Devine Ridge North
8. Burns Northwest9. Poison Creek (this study)10. Devine Ridge South11. Harney12. Buchanan
15. Burns (this study)16. Mahon Creek17. Crane18. New Princeton19. Southeast Harney Lake
21. Adobe Flat
24. Irish Lake25. Krumbo Reservoir26. Frenchglen27. Page Springs
U.S. Geological Survey 7.5’ Quadrangles by Number
FY 2019 DOGAMI STATEMAP geologic mapping
Future DOGAMI geologic mapping targets
OREGONBasinMap
Extent
StreamCounty boundaryHarney basin hydrologic boundary
Waterbody
Route State Federal78 395
APPROXIMATE MEANDECLINATION, 2019
14.02
MAG
NET
IC N
ORT
H
TRU
E N
ORT
H
Burns
SouthBurns NW
NorthFlat
Burns
U.S. Geological Survey 7.5-minute quadrangles. Map plate extent shown with a filled brown polygon.
OREGON
1 0 10.5MILE
1 0 10.5KILOMETER
Contour interval is 40 feet.
SCALE 1:24,000(1 inch equals 2000 feet)
GMS-123Geologic Map of the Poison Creek and Burns 7.5' Quadrangles,
Harney County, Oregon
By Jason D. McClaughry, Carlie J.M. Duda, and Mark L. Ferns
PLATE 1
2019
Geologic Map of the Poison Creek 7.5' Quadrangle, Harney County, OregonDEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES
STATE OF OREGON
BRAD AVY, STATE GEOLOGISTwww.oregongeology.org
OR
EG
ON
DE
PA
RTM
E NT O F G E O L O G Y A NDM I NE
RA
LI N
DU
ST
RIE
S
1937
Geologic mapping of the Poison Creek 7.5' quadrangle was supported in part by a grant from the STATEMAP component of the National Cooperative Geologic Mapping Program (G18AC00136).
Additional funds were provided by the State of Oregon.
B
B'
A'
A
119°0'0"W
119°0'0"W
119°7'30"W
119°7'30"W 43°45'0"N43°37'30"N
43°4
5'0"
N43
°37'
30"N
330000E
330000E
335000E
335000E
4835
000N
4835000N
4840
000N
4840000N
4845
000N
4845000N
NOTICE: This manuscript is submi�ed for publica�on with the understanding that the United States Government is authorized to reproduce and distribute reprints for governmental use. The views and conclusions contained in this document are those of the authors and should not be interpreted as necessarily represen�ng the official policies, either expressed or implied, of the U.S. government.
This product is for informa�onal purposes and may not have been prepared for or be suitable for legal, engineering, or surveying purposes. Users of this informa�on should review or consult the primary data and informa�on sources to ascertain the usability of the informa�on. This publica�on cannot subs�tute for site-specific inves�ga�ons by qualified prac��oners. Site-specific data may give results that differ from the results shown in the publica�on.
Source Data: Three-foot bare earth lidar digital elevation model for Poison Creek (43119-F1) quadrangle derived from multiple Oregon Lidar Consortium airborne lidar surveys: Harney 3-DEP 2018 and Burns 2011. These data are distributed through the Oregon Department of Geology and Mineral Industries (DOGAMI) Lidar Program (https://gis.dogami.oregon.gov/maps/lidarviewer/). Water features from USGS High Resolution National Hydrography Dataset (NED): Aquatic Resources Information System (ARMIS) (2017). Road features from Oregon Department of Transportation (ODOT) (2015).
Projection: Oregon Statewide Lambert Conformal Conic, Unit: International Feet,Horizontal Datum: NAD 1983 HARN. UTM Coordinates: Zone 11N, NAD83.
Software: Esri ArcGIS® v10.6 and Adobe® Illustrator® 2019 v23.0.3
Field Work: Field work conducted in 2018 and 2019 by Jason D. McClaughry, DOGAMI; Carlie J.M. Duda, DOGAMI; and Darrick Boschmann, Oregon Water Resource Department
References: Cohen, K. M., Finney, S. C., Gibbard, P.L. and Fan, J.-X, 2013,The ICS International Conostratigraphic Chart: Episodes 36, p. 199-204.
Gradstein, F. M., Ogg, J. G., and Smith, A. G., eds., 2004,A geologic time scale: Cambridge, U.K., Cambridge University Press, 589 p.
Ogg, J. G., Ogg, G., and Gradstein, F. M., 2008, The concise geologic time scale: New York,Cambridge University Press, 184 p.
Geology Reviewers: Martin Streck, Portland State University, Oregon; Josh Hackett, Oregon Water Resource Department; Clark A. Niewendorp, DOGAMI (retired); Ian P. Madin, DOGAMI; and Robert A. Houston, DOGAMI.
Digital Cartography: Jon J. Franczyk, DOGAMI
HARNEY BASIN LOCATION MAP