OEPARTMENT OF THE INTERIOR UNITED STATES GEOLOGICAL SURVEY GEOLOGIC MAP OF THE ZENOBIA PEAK QUADRANGLE, MOFFAT COUNTY, COLORADO By Wallace R. Hansen :c >z 00 tr:lz I N ztr:l 0 >tl:l "tt trl > ~ (j 0 t""' ,0 > 0 0 -t.) ~ b 0 0 GEOLOGIC QUADRANGLE MAP Published by the U.S. Geological Survey, 1978 G GEOLOGIC MAP SYMBOLS COMMONLY USED ON MAPS OF THE UNITED STATES GEOLOGICAL SURVEY (Special symbols are shown in; explanation) ----···· Con~act - Dashed where approximately Strike and dip of beds·- Ball indicates located; short dashed where inferred; top of beds known from sedimen­ dotted where concealed tary structure~ ~ Inclined e 1-forizor.tal t'S Contact - Showing dip; well exposed at Vertic;l ~ Overturned triangle Strike and dip of foliati_?n - ---·-·· Fault - Dashed where approximately located; short dashed where inferred; ~ Inclined -+- Vertical + Horizontal dotted where concealed Strike and di14 of cleal'age .. 20 Fault, showing dip - Ball and bar on ....!!..._. Inclined ,__, Vert+cal + .Horiz9-0taf downthrown side Bearing.. and plunge of lineation Normal fault - H~chut;ed on downthrown 15-- Inclined • Vertical --~.Horizontal side Strike and dip of joints Fault - Showing relative horizontal _._.t,() Inclined --- Vertical + 1-torizontal movement Note: planar symbols (strike aoo dip of beds, Thrust fault - Sawteeth on upper plate· foliation or schistosity, and cleavage) rl)aY be combined with linear symtruls to record data Anticline - Showing direction of plunge; observed at same locality by superimposed 't -- -.-- symbols at point of observation. Coexis:ting dashed where approximately located; planar symbols are shown intersecting at point dotted where concealed of observation. • Asymmetric anticline - Short arrow indicates steeper limb Overturned anticline - Showing direction Shafts of dip of limbs ~ Vertical ~ Inclined ------· Syncline- Showing direction of plunge; Adit, tunnel, or slope dashed where approximately located; >- Accessible >+- Inaccessible dotted where concealed x Prospect Asymmetric syncline - Short arrow indicates steeper limb Ql!arry ~ Active ~ Abandoned Overturned syncline - Showing direction of dip of limbs Gravel pit X Active X Abandoned Monocline - Showing ~irection of plunge of axis Oil well 0 Drilling 9 Shut-in ~ Dry hole Minor anticline - Showing plunge of axis abandoned ~ Gas ~ Show of gas Minor syncline - Showing plunge of axis • Oil .. Show of oil .