Table 2.  Thin-section point-count data for Sussex "B" sandstone.  Facies categories use those of Tillman and Martinsen 
(1985) determined for the Shannon Sandstone Member.  Refer to the glossary for mineral explanations (glossary.htm)
Data are average volume percentages for number (N) of thin-sections listed; QTZ, quartz; POLY, polycrystalline; FRAG, 
fragment; MS, mudstone; CLY; clay; SID, siderite; CHL, chlorite; CMT, cement; M-CMT POR, minus-cement porosity 
(Higley, 1992, 1994).

                                        |-----FRAMEWORK GRAINS-|--MAINLY DETRITAL MATRIX-|--------------------CEMENTS, CLAYS, POROSITY---------
------------------
FACIES               N         QTZ   POLY    FELD   ROCK   GLAUC     MATRIX      MS,   SID    PYR     CHL    QTZ    CHERT   FELD   CARB   
KAOL    PORO   M-CMT  
                                                      QTZ     SPAR   FRAG   ONITE      MS,    CLY    DRAPES      ITE       RIM                               SPAR   ONATE  
INITE     SITY        POR
------------------------------------------------------------------------------------------------------------------------------------------------ 
All facies	54 	31	2.9	6.3	  13	5.1	3.0	5.9	1.8	0.9	0.6	0.9	7.7	2.1	1.5	11	0.8	5.4
	30
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
-----------
                                                                                            
Chert pebble	 3	27	0.8	3.5	  36	3.0	0.0	2.1	0.0	0.0	0.2	0.0	1.9	0.0	0.2	21	0.0	1.6
	25
sandstone                                                                                  
                                                                                               
Central- 	17	32	2.9	5.7	  14	4.7	0.7	3.9	2.1	2.9	0.3	0.8	8.5	2.1	1.3	9.5	0.4	7.7
	31  
ridge ss                                                                                     
                                                                                               
High-energy 	 8	30	  2.7	7.1	  11	5.5	2.8	3.8	1.2	0.1	1.3	1.3	8.5	2.2	1.6	14	0.5	6.1
	36
ridge margin                                                                                        
                                           
Low-energy 	 3	27	3.1	8.5	  12	6.7	1.4	7.6	1.2	0.8	1.0	1.1	     11	1.9	3.8	9.7	0.9	2.4 
	32
ridge margin                                                                                 
                                                                                              
Wavy-	 6	32	2.1	6.9	  10	6.9	3.2	5.1	0.0	0.0	0.4	1.8	7.9	2.2	2.2	12	1.6 	5.9 	34
bedded                              
                                                    
Inter-ridge	10 	31	2.8 	7.4	   11	5.5 	3.3	7.2	3.2 	0.2 	0.7	0.7	8.3 	2.2 	1.5 	8.5 	1.3	5.4 
	29
sandstone                                                                                   

Inter-ridge	 7	33	2.3	5.3	10	3.4	      10	 13	3.3	0.2	0.6	0.6	4.5	2.6	0.7	6.8	0.6	2.1
	19 
Siltstone