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.::. ,... . :.:...:.>. ,.>:.:.:.. .I... .::::.-:,... :;>,::y ‘,*.*.‘.***.‘.*.‘.‘. ‘.‘.‘A‘.‘:::::: ..; . . . . . . . . *.*. . . . * Scale 1:250 000 - - - Main Roads - Rivers 0 Larger villages :.:.:.:.: ::s::::::: Land above .>:.:.:.:. ._‘.‘,‘.‘.’ 500 metres Fig. 1: Location of the survey area
45 40 36 w 30 25 20 Fig. 3: Map showing location of the Bouguer anomaly survey area, number of gravity stations in each 1 :lO, 560 scale map and local gravity base stations I- _.-* : J 5 /,’ 1 I ,’ 15 *,. _- _- 9u 95 00 * 05 10 15 20 26 30
Page 1: _ . .._ - -- c- -2 - - _.a Natural
Page 5: This report relates to work carried
Page 8 and 9: CONTENTS Summary 1 Introduction 1 G
Page 12 and 13: 1978; Brenchley and Pickerill, 1980
Page 14 and 15: m 40. 3-J- 2s- /o 0 I. 4 0 . 4 (
Page 16: 63 3 Fig. 7; Aeromagnet ic map Qf t
Page 19 and 20: INE AA’ FIG 7 f3F BALA FAULT 1OnT
Page 21 and 22: I t t t t I a I 1 a t 1 a a 1 I 1 t
Page 23 and 24: Fig. 13: Oistribution of cerium in
Page 25 and 26: 39 38 // 2 f +CYNWYD As 30 NI 62 Cu
Page 27 and 28: The main feature is a magnetic high
Page 29 and 30: 7 / I 03 0 Reconnaissance sample si
Page 31 and 32: PT Permotrias C Carboniferous S Sil
Page 33 and 34: Table 3 Summary of analytical resul
Page 37 and 38: f . I PT Permotrias C Carboniferous
Page 39 and 40: samples chalcopyrite was identified
Page 45 and 46: . Table 5 Threshold levels and clas
Page 47 and 48: T Permotrias Z Carboniferous 5 Silu
Page 49 and 50: T Permotrias C Carboniferous S Silu
Page 51 and 52: trials for slate. Analysis of a qua
Page 53 and 54: ST Permotrias l3C Caradoc 335 oc I
Page 55 and 56: levels in sediments from the same s
Page 59 and 60: T Permotrias Carboniferous Silurian
Page 61:
makes little direct contribution. T
Page 64 and 65:
main contributor I& a sample collec
Page 66:
- and SMITH, R., T. ,1975. A compar
Page 71:
Road Stream with sample site CAR~IF
Page 77:
, 4’3 35 3” 25 20 08 I ,\ ‘\
Page 83:
Fig. 19: Plot of anomalous iron res
Page 104:
AS PAN ta ;I! ta2: 357. ;::* 226 ::
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