Page 142 - Carbonate Platforms Facies, Sequences, and Evolution

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s 10 60+ 40+ 30 25 ? JO ? (20) (40) (25) 25 40 (30) (30) z 0 30 -35 - 3c 49 43
S9 80 - 100 70° 70 ? ? -1 20 --- 85+ 70 - 70 100 0 c ? 60 ? 100 JOe 93 107 Kim
100 z 80 -l
S8b( 13} 135 --95 - 40? -so - 75+ - 90 -- 0 0 90 -- 90- JOO- 100 I") 0 ., :=:: ? ? ? ?
S 8a (14) 30+ 194 145 ]] 74 23 48 ? 48 55 c --J 57 40 44 39 ? 52 49 94 67
�-7/ ·/ � � @ 0 5 ., 0 @ � [j)� v,� )/� Late Call
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s 7 (17) 8 - 9 78to 34 63 70 20+ 30 66 56 - 28 38 57+ 30+ ? 47 , 5 46 37 128 132
110 70 124 to
s 7 (18} 14-17 110 Ill 60 190 ? 100 150 55 29 0 ? Tx) (x) 70+ 250 c04 4 5 4 Mi
142 160 $ Early Bath.--
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s 6-5 4-6 ? 40 � 22 10-15 30+ 0-5 '2-3 0-1 9 5 10-24 115 3-4 8 � o; ��) v;�� ((�� Toa
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S3 bc (19} � z 0 26 15-35 55 � 61 'z 0 z 140 45-50 0-7 52+ ISO I 34c 150 lSI 238
S 3 a (20) z rn � cs m 121 50 32 95 I 59 z z 100 ISO 261 Late and Middle
m X ., 120+ 100 X ., 100 0 z 0 z ----w- > c
Hettangian
s 2 (21} � 0 100 45 46 35-60 48 45 3 rn - r --J ----::\5 Early
Vl 109 � ., ., X r.-. Hettangian
s 1 � 0 rn 15 10 10 9+ 6 10 10 4-11 30 JO ? 0-6 0 "' c Vl 17 c 12 ]8 ?
so � ? 8 12-27 19 19 15+ 10 ? JO? 12-15 10 0-15 0-10 48 0 m c -----:30 20 so
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�-:·.: . :· · :I (22) Sandstones, Conglomerates � (23) Basinal marls 1m (24) Main gaps I @ I (2 5 ) Le
Fig. 20. Simplified thicknesses-chart of Rhaetian-Jurassic sequences selected in the study- rea (Ardeche and North
Values are given in metres. Data come from both measured sections and boreholes, sometimes supplemented by map eval
several areas, variations are very rapid especially in the pre-Callovian terranes. The range of the thickness vari
extreme values. Estimations are indicated by question-marks (?). Values in brackets are given from nearby sections
for the Callovian and the late Jurassic, around the town for the lower part; 2 = outcrops near Auriolles and well A
terranes above the Upper Sandy-Calcareous Series (S5 and S6); 4 = along the Luol transverse lineament (TL); 5 = sou
for the late Jurassic; 6 = outcrops and wells; 7 = located at the toe of the Orcieres transverse lineament (TO); 8
along the Courry-Saint Bres escarpment (IV); 10 = west of the Courry-Saint Bres escarpment; 11 = east (basin
interpretation of wells drilled during the early sixties; 13 = Calcaires du Pouzin and Couches de Joyeuse Formation
lenticular beds along the border; 16 = Terres Noires; 17 = Callovian Triad; 18 = lower part of the Marly-Calcar
Garenne, Chateau d'Aubenas and Bose Formation; 20 = upper member of the Nodular Series; 21 = Complexe Carbona
facies of the Vaumalle Fm; 23 = basinal marly facies, Domerian-Aalenian and late Callovian-early Oxfordian only; 2