Laserfiche WebLink
a <br /> r <br /> - `•- � ; `tom _ <br /> 0 � �„- �- •"�.� �-_; - Years <br /> 1 � __ xt- Geologic Before Recency DESCRIPTION <br /> �.�, Fault of <br /> - -.t : " j' I -�, Time Symbol <br /> ' .. res Movement <br /> f �,-.. <br /> " '" Scale ON LAND OFFSHORE <br /> :a <br /> Present <br /> { <br /> - - + Approx.) <br /> Displacement during Historic time(e.g.San Andreas fault 1906). <br /> 'a, �t •=i �Rr`" 200 Includes areas of lalown fault creep. <br /> i <br /> Displacement during Holocene time. Fault offsets seafloor sediments <br /> 1 4 o C . .C. or strata of Holocene age. <br /> - - <br /> f <br /> ,� �, TM""'- ` �� ,� r*d'.�t : t s; a�. •. �:A' � �+ -,�•�-� y� .10,000— <br /> Faults <br /> 0,00 <br /> 0 ---�� aulis showing evidence of displace Fault strata of <br /> ° i i, s - I _ o • n •. meat during late Quaternary time. Pleistocene age. <br /> c a <br /> Undivided Quaternary faults-most <br /> 4 rss •�s� = Jr A '` " _ i + t ; 700,000 faults in this category show evidence <br /> s .. <br /> IA o of displacement during the last <br /> - - -` �' ;. o 1,600,000 years:possible <br /> -, ->' fault cuts strata of <br /> • - ��-� �'� �. exceptions are faults which displace <br /> Quaternary age. <br /> • rr + . . rocks of undifferentiated Plio- <br /> ta �-,; _t ,f » ✓ , e e �, a Pleistocene age. <br /> f y - ,_�,-� e� � Late Cenozoic faults«ithin the <br /> - �� ���� '� Sierra Nevada,including parts of <br /> . •' � � f �` r..:�r.i� -'� ��� by not restricted to the Foothills <br /> v ',; + eta It{ `� r rr �r 1,600,000 <br /> 1 ' fault system. These faults may have <br /> �. _ <br /> �;� ;"G� P - �`' � -- •+ ,:, "' been active in Quaternary time <br /> r <br /> *\ ' _ 77 <br /> L 1 � <br /> Faults without recognized Quater- <br /> ' ee <br /> n displacement or showing ary <br /> Fault cuts strata of <br /> ....- <br /> m ' -•4 ', - <br /> �' evidence of no displacement during Pliocene or older age. <br /> Quaternary time.Not necessarily <br /> inactive.4 <br /> t_ <br /> o 1 j t£ - Pre Quaternaryfaults shown in <br /> 17, <br /> t Z3 ,,w,` ., ' �..`"' 44., \_' {p Nevada and Oregon. <br /> 4.5 billion <br /> (Age of birth) <br /> a <br /> f.z �` Oro' , �. .y„..s,r•-.•-^ <br />' � ••" t �� 4 � I��r ,,�/u�_`•,�� `:} •( --•. �� < A- Pink band added to emphasize location of historic fault displacement. <br /> :'—�" "ti �` '^-` ' " 4- ADDITIONAL FAULT SYMBOLS <br /> _.. <br /> "• �. , :-, -,. �r ' " �D__ U=Upthrown side(relative or apparent) <br /> _ - . ,s, <br /> D=Downthrown side(relative or apparent) <br /> jj <br /> Bar and ball on downthrown side(used where space is limited). <br /> t' IDA- t - \4 Arrows along fault indicate relative or apparent direction of lateral movement. <br /> W (Nt <br /> -1 �_ Arrow on fault indicates direction of dip. <br /> As <br /> t / S <br /> h �• "' ` 'Y 1 yy� ___ Low angle fault(barbs on upper plate).Fault surface generally dips less than 45'but locally <br /> APPROXIMATE SCALE: iInds=12 mites -~ may have been subsequently steepened.On offshore faults,barbs simply indicate a reverse <br />' ob tti fault regardless of steepness of dip. <br /> z <br /> W' tvT ty c �Q 6 12 <br /> 24 <br /> (1 750.000)t' 1.11,' <br /> SCALE AS FOOTHILL VICINITY FAULT MAP <br /> COUNTY OF SAN JOAQUIN SHOWN SANITARY LANDFILL JOINT TECHNICAL DOCUMENT FIGURE 13 <br />