Pre‐Alpine structures in the SE Mediterranean (Levant) are characterized by regional extensional features, which are associated with opening of the Mediterranean Sea. Marginal marine basins apparently began forming during the Triassic and Jurassic, and reached their apex during the Cretaceous. Stress patterns attributed to early development of the Mediterranean are similar to those seen in the relatively stable adjacent continental margin. The two major structural‐basin trends in the continental margin are orthogonal, e.g. the NW‐SE trend of the Sirhan Basin, and the NE‐SW trend of the Palmyra Basin. The western convergence of these two basins is marked by basaltic flows and volcanoclastic deposits, probably related to basaltic volcanism in the nearby Mediterranean Sea. These two basins maintained a largely unimpeded circulation of seawater with the opening Mediterranean, and therefore they contain few highly carbonaceous beds. Post‐rift shortening apparently produced minor petroleum resources.
J o h n C . F e r m a n d V i c t o r V . C a v a r o c , J r .
Abstract
T h e m i d d l e P e n n s y lv a n ia n A l l e g h e n y F o r m a t io n , w h ic h cr o p s o u t in th e A p p a l a c h i a n P la t e a u o f W e s t V ir g i n i a , r e p r e s e n ts n o n m a r in e e q u i v a le n ts o f d e lt a i c m a r in e -b r a c k is h -n o n m a r in e s tr a ta n o r t h w e s t w a r d in P e n n s y lv a n ia a n d O h i o . I n W e s t V i r g i n i a , th e A l l e g h e n y is s o m e 300 fe e t t h ic k a n d c o n sists m a i n l y o f s a n d s to n e , s h a le , c o a l, a n d s e a tr o c k u n its , n o n e o f w h i c h d is p la y s a n y g r e a t d e g r e e o f la t e r a l c o n t in u it y . S a n d sto n e u n its , w h i c h i n cross s e c tio n are a b o u t 60 fe e t t h ic k a n d r o u g h ly5 m ile s w id e , are a r r a n g e d in a n e n e c h e l o n m a n n e r w i t h i n a n a n a s to m o s
i n g p le x u s o f s h a le , c o a l, a n d s e a tr o ck . S a n d s to n e s p r e s u m a b ly r e p r e s e n t f lu v ia l b a r s a n d s w h e r e a s s h a le , c o a l, a n d s e a tr o c k s u g g e s t v a r io u s b a c ks w a m p e n v ir o n m e n ts . T h e e n e c h e l o n a r r a n g e m e n t o f b a r s a n d u n its p r o b a b l y arises fr o m m a jo r la t e r a l s h i f t in g o f c h a n n e ls in t o a d j o i n i n g t o p o g r a p h i c a l ly lo w e r b a c k s w a m p s . D iff e r e n c e s in p r o p o r t io n a l a b u nd a n c e a n d d im e n s io n o f c h a n n e l a n d b a c k s w a m p e le m e n ts fr o m s o u th e r n to n o r t h e r n W e s t V i r g i n i a s u g g e s t a t r a n s it io n fr o m a n a l l u v i a t e d u p p e r d e lt a ic p la i n to a p a r t ia ll y i n u n d a t e d lo w e r d e lt a ic p la in .iAs this manuscript was submitted, Allen ( 1965) presented a synthesis o£ present knowledge on recent fluvial processes and suggests a number of hypothetical models for fluvial deposits.
The data contained in this Open-File Report were compiled in Microsoft Excel 5.0/95. In the Location and Stratigraphy File Statistics section of this report a summary of the various files is included. This may help the user by showing the file size and number of rows within each file. This may be useful "at a glance" information because some versions of spreadsheet programs have row limitations. INTRODUCTION One of the objectives of the National Coal Resource Assessment in the Northern Rocky Mountains and Great Plains region was to compile stratigraphic and coal quality-trace-element data on selected and potentially minable coal beds and zones of the Fort Union Formation (Paleocene) and equivalent formations. In order to implement this objective, drill-hole information was compiled from hardcopy and digital files of the: (1) U.
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