ML14260A034
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H O S G R I F A U L T Z O N E H
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i S G R I F A N 40 o W FAULT NORTH CENTRAL SEGMENT SHORELINE FAULT SEGMENT 3D south survey boundary 2D survey boundary Irish Hills 3D primary survey boundary DCPP Crowbar Lion Rock Coon Creek Islay Point Diablo Cove Islay Creek Point Buchon Diablo Canyon Hazard Canyon Crowbar Canyon Qs Qsw Qs Tmpm Tmpm Tmpm Tmm?
Qs Ks Tmm Qs Tmm Qsw Tmo Qsw Qsw Qsw Tmpm Tmo Tmo?
Tmpm Tmod Qs Tmo?
Tmo Ks Tmo?
Tmor Tmm?
Qs Tmod Qsw KJfmv?
KJfmv Tmor Tmo?
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Tmo?
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Qsw/Qcs Tmor Tmm?
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Tmod Qsw KJfmv 120.86° W 120.86° W 120.88° W 120.88° W 120.9° W 120.9° W 120.92° W 120.92° W 120.94° W 120.94° W 120.96° W 120.96° W 35.3° N 35.3° N 35.28° N 35.28° N 35.26° N 35.26° N 35.24° N 35.24° N 35.22° N 35.22° N 35.2° N 35.2° N 35.18° N 35.18° N Pacific Gas and Electric Company File path: S:\\13800\\13838\\13838.002\\Figures\\20120210_SIT\\Plate_01.ai; Date: 07/03/2012; User:
DCPP 101 101 Plate 1 Map scale:
Map projection: NAD 83, UTM Zone 10 North DCPP 3D/2D Seismic-Reflection Investigation Figure Location 1:20,000 0
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0 20 40 10 km PLATE 1 Geology of Interpreted Offshore Structures from the 2011 Shoreline Fault Zone Report (PG&E, 2011b)
Symbols Depth (km)
Magnitude Contact; solid where well located, dashed where inferred or approximately located, dotted where concealed, queried where questionably inferred Syncline; solid where well located, dashed where approximate, dotted where concealed, queried where questionably inferred Anticline; solid where well located, dashed where approximate, dotted where concealed, queried where questionably inferred Fault; Tertiary age or older (inactive), solid where well located, dashed where approximate, dotted where concealed, queried where questionably inferred Fault; slip rate <1 mm/yr, solid where well located, dashed where approximate, dotted where concealed, queried where questionably inferred Hosgri fault; slip rate 1 mm/yr, generally covered but, shown as solid where well located, dashed where approximate, queried where questionably inferred Lineament; solid where well expressed, dashed where moderately expressed Measured bedding orientation Picks of faults and fold axes interpreted from shallow seismic survey lines 47 0.0 to 0.9 1.0 to 1.9 2.0 to 2.9 3.0 to 3.5 8.0 to 9.9 10.0 to 11.9 12.0 to 13.9 14.0 +
0.0 to 1.9 2.0 to 3.9 4.0 to 5.9 6.0 to 7.9 Seismicity 1987 to 2008 (Hardebeck, 2010)
EXPLANATION Tov Tmpe Tmof Tmr Tmpm Tmp Tmor Tmod Tmo Tmm Ks KJfo s
KJfmv KJfm KJf Tppg Tppb Tpps Qf af Qoa Qm Qls Qe Qc Qal Qsw Qs Qcs Geologic Units Unconformity Unconformity Unconformity Unconformity Unconformity Faulted Progressive unconformity Unconformity Local unconformity Quaternary Oligocene Miocene Pliocene Jurassic/Cretaceous Tertiary Tertiary Note: Geologic units with two labels separated by a slash (e.g., Qoa/Qc) indicate depth profiles in which the former unit overlies the latter.
Artificial fill Marine sediments, offshore; includes unconsolidated marine sands and silts on the continental shelf Sand wave deposits, offshore dune-like sand deposits typically less than 50 cm thick mobilized by large storm surges Alluvium; unconsolidated gravel, sand, silt, and clay Colluvium; unconsolidated poorly sorted gravel, sand, silt, and clay produced by hillslope processes Landslide deposits; arrows show direction of inferred movement Eolian deposits; active and inactive sand dunes Fluvial terrace deposits; unconsolidated gravel, sand, silt, and clay deposited in stream valleys Fluvial channel deposits, offshore; generally overlain by transgressive marine sand and silt Marine terrace deposits; unconsolidated gravel, sand, silt, and clay commonly overlain by alluvial fan and colluvial deposits Older alluvium; poorly consolidated siltstone, claystone, and conglomerate Edna Member of the Pismo Formation; fine-to coarse-grained sandstone, locally bituminous Miguelito Member of the Pismo Formation; brown claystone and siltstone Monterey Formation; chert with siliceous and dolomitic siltstone, tuffaceous sandstone, diatomite, and opaline and porcelaneous shale Obispo Formation, undifferentiated Obispo Formation; tuffaceous and diatomaceous sandstone and silty sandstone Obispo Formation; diabase Obispo Formation; resistant zeolitized tuff Rincon Formation; dark brown siltstone, and silty claystone Vaqueros Sandstone; conglomerate and sandstone, with local coquina horizon Pismo Formation; undifferentiated Squire Member of the Pismo Formation; massive white to tan, medium-to coarse-grained sandstone Belleview Member of the Pismo Formation; sandy claystone, siltstone; claystone and fine-grained sandstone, diatomaceous horizons Gragg Member of the Pismo Formation; fine-to medium-grained sandstone, rare diatomaceous siltstone, pebble conglomerate, and bituminous sandstone Undifferentiated well bedded brown fine-to coarse-grained arkosic to lithic sandstone with shale Franciscan Complex, undifferentiated Franciscan Complex rocks, melange: sheared shale, mudstone and siltstone with knockers of graywacke, schist, conglomerate, metavolcanic rocks, and green, white, or red chert Franciscan Complex, metavolcanic rocks Franciscan Complex, ophiolite Serpentine Note: Geologic map shown here is an excerpt of Plate 1 from PG&E (2011b). Not all geologic units in the explanation are present on the map.
Approximate survey boundaries
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Jereme Chandler, LCI Ch2.GEO.DCPP.TR.12.01 R1
Pacific Gas and Electric Company File path: S:\\13800\\13838\\13838.002\\Figures\\20120210_SIT\\Plate_02.ai; Date: 07/03/2012; User: Jereme Chandler, LCI F
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3D south survey boundary 2D survey boundary Irish Hills 3D primary survey boundary 40008 10002 11013 11109 10003 40001 21502 11001 3
1303 51117 31301 10007 11507 11208 11305 2
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11 03 11007 Crowbar Lion Rock Coon Creek Islay Point Diablo Cove Islay Creek Point Buchon Hazard Canyon Crowbar Canyon 40005 20006 11114 61501 41501 61401 61206 51119 61509 61502 61202 120°52'W 120°52'W 120°54'W 120°54'W 120°56'W 120°56'W 120°58'W 120°58'W 35°18'N 35°18'N 35°16'N 35°16'N 35°14'N 35°14'N 35°12'N 35°12'N 35°10'N 35°10'N EXPLANATION DCPP
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Syncline axis Faults, solid where well located, dashed where inferred or approximately located, queried where uncertain, dotted where buried by more than 20 milliseconds of undeformed strata M
Anticline axis PLATE 2 Structure Map Based on Low Energy 3D/2D Seismic-Reflection Data Plate 2 Map scale:
Map projection: NAD 83 UTM Zone 10 North 1:20,000 DCPP 3D/2D Seismic-Reflection Investigation F
Approximate survey boundaries
- Faults and fold axes are shown at the position where they intersect a time slice at 150 milliseconds. Faults that do not intersect the 150 millisecond time slice were projected vertically from their intersection with a time slice at either 80 milliseconds or 300 milliseconds as appropriate.
- Base map is hillshade image developed from MBES bathymetry, taken from Shoreline Fault Zone Report, the PG&E (2010) coastal LiDAR survey, and the San Luis Obispo County 5 m DEM.
Notes:
Area of poor interpretability 0
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Figure Extent
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First digit - Name or trend of fault trace Second digit - Differentiates a primary strand (digit equals zero) from secondary strand of a fault zone or group of faults (digit equal to or greater than 1)
Third digit - Fault attitude and direction of movement 0 = Strike-slip - vertical to near-vertical fault 1 = Normal - east-dipping or down on east 2 = Normal - west-dipping or down on west 3 = Reverse - east-dipping or up on east 4 = Reverse - west-dipping or up on west 5 = Uncertain - data interpretability is not sufficient to resolve Fourth and fifth digits - Individual fault ID number (up to 99 faults can be listed)
Faults that are continuous and change in dip along strike are given different numbered fault codes along those segments that dip differently.
Fault Name or Trend Five-Digit Code Hosgri Fault Zone Point Buchon fault zone Western splays of Point Buchon fault zone East Branch Point Buchon fault zone N-S trending faults NW-SE trending faults E-W trending faults Other large faults Unassigned faults Explanation of Numerical Fault Trace Designation 10000 20000 30000 40000 50000 60000 70000 80000 No numbers
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Graben, queried where full extent is uncertain
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E a s t B r a n c h P o i n t B u c h o n f a u l t Po int B uch on fa ult Po int B uch on fa ult H o s g r i F a u l t Z o n e Ch2.GEO.DCPP.TR.12.01 R1
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3D south survey boundary 2D survey boundary Irish Hills 3D primary survey boundary 40008 10002 11013 11109 10003 40001 21502 11001 3
1 303 51117 31301 10007 11507 11208 11305 20002 10013 11014 40004 61506 11506 11003 10004 31302 61515 60501 61512 20001 51203 51202 51102 61402 41301 11015 11108 11509 61511 51111 51002 40003 51105 11008 1
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51101 51121 71501 11303 11207 41505 61003 11301 61201 41506 71505 61301 71504 10011 11019 11204 11004 51110 61507 11304 71401 6
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11006 31305 61504 61205 41503 61101 61513 11017 61207 11508 11511 61517 41502 61518 11512 51201 11504 11018 11 5
03 11501 20006 61202 61503 61103 11011 61516 20003 40002 51104 61211 11007 61102 61508 51118 61505 11510 11010 61510 31304 11109 51110 31301 20002 11007 Crowbar Lion Rock Coon Creek Islay Point Diablo Cove Islay Creek Point Buchon Hazard Canyon Crowbar Canyon 40007 10005 11114 61501 41501 61401 51112 61206 51119 51301 61509 61502 61202 61103 120°52'W 120°52'W 120°54'W 120°54'W 120°56'W 120°56'W 120°58'W 120°58'W 35°18'N 35°18'N 35°16'N 35°16'N 35°14'N 35°14'N 35°12'N 35°12'N Foldout B Foldout C Figure 6-9 Foldout D Figure 6-4 Figure 6-8 Figure 6-7 Figure 3-1 Figure 6-2 Figure 6-1 F
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H O S G R I F A U L T Z O N E N 40 o W FAULT NORTH CENTRAL SHORELINE SEGMENT SHORELINE FAULT SEGMENT 3D south survey boundary 2D survey boundary Irish Hills 3D primary survey boundary TRACE A TRACE A1 TRACE B TRACE C TRACE C2 TRACE C2 TRACE C1 CE C1 TRACE A2 ACE A2 DCPP Crowbar Lion Rock Coon Creek Islay Point Diablo Cove Islay Creek Point Buchon Diablo Canyon Hazard Canyon Crowbar Canyon 120°52'W 120°52'W 120°54'W 120°54'W 120°56'W 120°56'W 120°58'W 120°58'W 35°18'N 35°18'N 35°16'N 35°16'N 35°14'N 35°14'N 35°12'N 35°12'N
- 2010 Project DEM image is shown. This DEM includes 1 m multi-beam bathymetry data (PG&E, 2010), 1 m near-shore LiDAR topography data (PG&E, 2010) and 5 m SLO County InSAR data (SLO County, 2008)
- Map Projection: UTM Zone 10N, NAD 1983, Map Scale:
µ PLATE 3 (b)
Comparison of Interpreted Offshore Structures: This Study
- Base map is hillshade from PG&E (2011b) project DEM. The DEM includes 1m multibeam bathymetry data, 1 m near-shore LiDAR topography data, and 5 m InSAR data.
- Map Projection: UTM Zone 10N, NAD 83, Map scale:
Data Sources and Notes:
1:25,000
µ DCPP
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Comparison of Interpreted Offshore Structures: Shoreline Fault Zone Report (PG&E, 2011b)
Data Sources and Notes:
1:25,000
-Base map is hillshade from PG&E (2011b) project DEM. The DEM includes 1 m multibeam bathymetry data, 1 m near-shore LiDAR topography data, and 5 m InSAR data.
-Map Projection: UTM Zone 10N, NAD 1983, Map scale:
+/-
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File path: S:\\13800\\13838\\13838.002\\Figures\\20120210_SIT\\Ai\\Plate_03.ai; Date: 08/04/2012; User: Jereme Chandler, LCI 0
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0 20 10 km Figure Extent Figure Extent Pacific Gas and Electric Company 0
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0 20 10 km Pacific Gas and Electric Company 0
1 0.5 mi.
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1 0.5 mi.
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2 0.5 km EXPLANATION Depth (km)
Magnitude 0.0 to 0.9 1.0 to 1.9 2.0 to 2.9 3.0 to 3.5 8.0 to 9.9 10.0 to 11.9 12.0 to 13.9 14.0 +
0.0 to 1.9 2.0 to 3.9 4.0 to 5.9 6.0 to 7.9 Seismicity 1987 to 2008 (Hardebeck, 2010)
F Location of seismic profile used Note: Refer to Plate 2 for details of fault mapping.
in figures Approximate survey boundaries
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Anticline axis M
Syncline axis Faults, solid where well located, dashed where inferred or approximately located, queried where uncertain, dotted where buried by more than 0.020 seconds of undeformed strata Depth (km)
Magnitude
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Contact; solid where well located, dashed where inferred or approximately located, dotted where concealed, queried where questionably inferred Syncline; solid where well located, dashed where approximate, dotted where concealed, queried where questionably inferred Anticline; solid where well located, dashed where approximate, dotted where concealed, queried where questionably inferred Fault; Tertiary age or older (inactive), solid where well located, dashed where approximate, dotted where concealed, queried where questionably inferred)
Fault; slip rate <1 mm/yr, solid where well located, dashed where approximate, dotted where concealed, queried where questionably inferred)
Hosgri fault; slip rate 1 mm/yr, generally covered but, shown as solid where well located, dashed where approximate, queried where questionably inferred Lineament; solid where well expressed, dashed where moderately expressed Picks of faults and fold axes interpreted from shallow seismic survey lines 0.0 to 0.9 1.0 to 1.9 2.0 to 2.9 3.0 to 3.5 8.0 to 9.9 10.0 to 11.9 12.0 to 13.9 14.0 +
0.0 to 1.9 2.0 to 3.9 4.0 to 5.9 6.0 to 7.9 EXPLANATION Seismicity 1987 to 2008 (Hardebeck, 2010)
Graben A Graben B H o s g r i F a u l t z o n e P o i n t B u c h o n f a u l t E a s t B r a n c h P o i n t B u c h o n f a u l t P o i n t B u c h o n f a u l t Graben Ch2.GEO.DCPP.TR.12.01 R1