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, 4’3 35 3” 25 20 08 I ,\ ‘\ .A’. rl r *’ Fig. 4: Bouguer gravity anom8Jy m8p and cxttlh ~edbgy of the Berwyn Oome uw t .Contours in f&o! GTwity stotiolrs WGRN 1973, Rmduction dwsity 2.70 g cm” 6eologicot key in Fig 8 0 lkm 1 1 1 1 1 J 15 1 Ml 95 00 05 1 N 15 20 25 ‘30 __ a. / i/ -- /” 15 15 20 25 30 oc i 2c -,
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_ . .._ - -- c- -2 - - _.a Natural
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This report relates to work carried
Page 8 and 9:
CONTENTS Summary 1 Introduction 1 G
Page 10 and 11:
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Page 12 and 13:
1978; Brenchley and Pickerill, 1980
Page 14 and 15:
m 40. 3-J- 2s- /o 0 I. 4 0 . 4 (
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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 79: Fig. 21: Summary of anomalous resul
Page 87: 290 Fig. 17: Plot of anomalous bari
Page 106: 111. ‘::t . 1::: 447. 2II. X:: !I
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