ML18193A155
| ML18193A155 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 11/17/1975 |
| From: | Arizona Public Service Co |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| Download: ML18193A155 (1) | |
Text
I
-15
-10 ORIGINAL GROUND SURFACE DISTURBED BY EQUIPMENT ACTIVITY I-5 SILTY SANO AND GRAVEL BROWN,
- LOOSE, CALCAREOUS, POORLY
- SORTED, FINE TO COARSE GRAINED SAND ANO VOLCANIC GRAVEL BACKHOE TRENCH PV-BH-2OA North Wall FEET I
10 I
15 N60'E I
20 DISTURBEO SURFACE DEBRIS GENERATEO BY EXTENSIVE EQUIPMENT ACTIVITY 25 I
30 DATUM I
BASALT GRAY.
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- COATING, DENSITY INCREASE WITH
- DEPTH, TIGHT DA7UM SHEAR ZONE ANOESITE (?)
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- SORTED, CALCAREOUS, CALCITE FILLINGS DATUM CONTACT I
POSSIBLE SHEAR~I I
DATUM TRENCH FLOOR BASALT DARK GRAY LOCALLY RED-BROWN BRECIATEO, HIMHLY FRACTURED, CALICNE COATING, CALCITE FRACTURE FILLING, IRON OXIDE COATINGS, ALTEREO PHENOCRYSTS REO-BROWN.
BASALT RED-BROWN, HIGHLY FRACTURED
- ALTERED, CALICHE COATIHGS, HIGHLY OXIDIZED FAUL'I A SHEARS CQNVERGING TOWARD 607?OM OF TRENCH N55oW 74 NE SHEAR SURFACE I
CRUSHED ZONE (?) I I
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87 'SW N75'6 (APPROX.
TREND)
FAULT SLICKENSIOES VISIBLE, PLUNGE 70?SW WHITE GOUGE X" THICK AREA OF EXTENSIVE FRACTURING ANO ALTERATION VOLCANIC ROCK TYPES NOT DISTINGUISHABLE CHANGE BASALT RED-BROWN TO RE0-6RAY, HIGHLY AL7ERED, FRACTURED, HIGHLY OXIDIZED ZONE WHITE ALTEREO GOUGE MATERIAL PINCHES OUT DOWNWARD WITH BLUE-GRAY VOLCANICS,
- HARD, BLOCKY STRUCTURES, CONTAINS PINK AND CLEAR FRAGMENTS, MANGANESE STAINS IN ALTEREO SECTIONS Date of Excavation 9-26-76 LOG OF TRENCH PV-BH-20A November 17, 1975 Amendment 14