Exploration for porphyry-style copper mineralisation near Llandeloy

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Table 2 Analyses of intrusive rock samples collected from exposures in the Llandeloy - Middle Mill area C No 2 15 3 4: 30F 4 2F 8 27F 12 13 14 17 40 4 1 1 26 29 5 28F 31F 43F 25 2 3 F 24F Rock Type Quartz-diorite . Parph. qtz.m.diorite -' Porphyritic microtonalite Quar tz-f eldspar porphyry F denotes float sample Also determined: Sn
Table 3 Analyses of miscellaneous rocks from the Llandeloy - Middle Mill area No. - Ti% Mn% Fe% N i Cu Pb Zn As Mo Sn Ba Rb Sr Ca% Y Ce Zr Th u Results in ppm except where indicated 10 Siliceous, fine grain, grey-green tuffs with minor pyrite, Treglemais Group [SM 8164 28121 22 Siliceous, medium grained, grey-green tuffs, Treglemais Group [SM 8147 27561 34 Grey-green, pyritic tuffs, brecciated and quartz veined, Treglemais Group [SM 8096 26941 32 Banded, ashy siltstones with weathered ?pyrite, Brunel beds ISM 8395 27101 33 Thinly bedded siltstones, Brunel beds [SM 8320 26251 6 Vein material from old working, Ramsey Head ISM 7153 23521 Table 4 Analyses of sedimentary rock samples from Middle Mill quarry No. Sn also determined, all results
Page 1: Natural Environment Research Counci
Page 5: Report No. 78 @ Crown copyright 198
Page 9 and 10: SUMMARY REGIONAL STUDIES Intrusive
Page 11 and 12: SUMMARY Geological, geochemical and
Page 13 and 14: concluded that except for Zn the re
Page 15: The only rock containing evidence o
Page 19: - 28 St. Brides Bay -
Page 22 and 23: Hercynian orogenies (M. 3. Arthur,
Page 24 and 25: Figure 14 Location of soil anomalie
Page 26 and 27: producing a very limited dispersion
Page 28 and 29: -1 00- Contours of VLF horizontal i
Page 30 and 31: area and periglacial and glacial de
Page 32 and 33: the Brunel Beds or the Tetragraptus
Page 34 and 35: contains sparse subhedral plagiocla
Page 36 and 37: There is some variation in the alte
Page 38 and 39: The cause of other isolated weak Cu
Page 40 and 41: j Table 9 Summary of analyses of in
Page 42 and 43: increase the Zr content. The divisi
Page 44 and 45: variation between pu8M microdioritn
Page 46 and 47: T/I~~/~~IPYS openjoi~~tcd limestone
Page 48 and 49: Table 13 Summary statistics for sed
Page 50 and 51: than average values quoted for sand
Page 52 and 53: Introduction The main geophysical m
Page 54 and 55: Figure 42 Contour map of apparent r
Page 56 and 57: Figure 45 Contour map of tow magnet
Page 58 and 59: Pigum? 47 Cumulative f reguency plo
Page 60 and 61: it to this late propylitic alterati
Page 62 and 63: HOLWSTER, V.F. 1974. An appraisal o
Page 64 and 65: APPENDIX 1 ABBREWATEI) BOREHOLB LOG
Page 66 and 67:
BOREHOLE 2 Registration Number STvI
Page 68 and 69:
BOREHOLE 3B Registration Number SM
Page 70 and 71:
BOREHOLE 5 Registration Number SM 8
Page 72 and 73:
Page 74 and 75:
Page 76 and 77:
SANDSTONE: as above CLAY GOUGE: SAN
Page 78 and 79:
--- APPARENT ESISTIVITY pa IN OHM M
Page 80 and 81:
APPARENT ESISTMTY H Bbs ys 06 q6 CH
Page 82 and 83:
z ~ l ~ ~ ~ l ~ l . ~ l ~ , ~ l l A
Page 84 and 85:
z ~ 1 ~ 1 ~ 1 ~ 1 ~ 1 APPARENT FEJS
Page 86 and 87:
z ~ l $ l l l l l ~ l l ~ l l l l ~
Page 88 and 89:
MAGNETIC FELD IN NAFTESLA Y /-*-.-.
Page 90 and 91:
!IN@ a 8 g e s s I! s F N : , S ? I
Page 92 and 93:
~ N & E e 8 g B 8 8 7 a F N . S ~ 9
Page 94 and 95:
PHYSICAL PROPERTY MEASUREMENTS ON B
Page 96 and 97:
Borehole 8 (diameters of core 9-72
Page 98 and 99:
APPENDIX 5 COMPUTER MODELLING OF AE
Page 101 and 102:
RMS RESID - 6.53 FLU. PT ELEV ORS n
Page 103 and 104:
MRGNET I C: TIJTERF'HFTAT 1014 . .
Page 105 and 106:
ANU.YSB OF BOLPROLB CORE& TRACE ELE
Page 107 and 108:
. Sample BH , Depthv ,(m); -, - . ~
Page 109:
. , I , . . . . .. . , . , '," . ',
Page 112 and 113:
Fig.7 Aeromagnetic anomaly map of t
Page 115 and 116:
\ Fig.13. Compilation map of resist
Page 117 and 118:
Q Q E C E CCt C E Ct C Q Ct CtQ C Q
Page 119 and 120:
!2 CO N A 4 ul o ~n o ul 0 DEPTH IN
Page 121 and 122:
Fig.25 BOREHOLE 5 C C C C Ct C E K
Page 123 and 124:
Fig.27 BOREHOLE 7 E Q C Q E C 0 Q E
Page 125:
81 82 83 84 Fig.30. : Location of c
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Exploration for porphyry-style copper mineralisation near Llandeloy

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