l62 77/A- JOURNAL ()/■■ CI'.OLOGY. 



so many yt:ars tlu; head <)!" the State Survey, it was deemed 

 advisable to act with ^reat deliberation l)elore propfjsinj^ any 

 iniijortant changes in the classification. Accordingly the first 

 report to the State Geologist was limited to the fewest ]jossible 

 alterations in the accej)ted names of the formations, and the 

 work made to conform so far as it was ptjssible with the earlier 

 results of the State Survey. As the work has progressed the 

 necessity of modifying the classificati(jn hitherto adoj)ted has 

 beccjnie apparent, and such chang(;s are j>resented at this time. 

 The use of lithologic terms for the formations in the earlier 

 nomenclature will be in the future discarded for j)lace names, 

 the older terms being retained to designate their economic 

 e(|uivalents. Local terms have been adopted, care being taken 

 to select such as would characteristically rejjresent the forma- 

 tions. The names of rivers, hills, and towns, in the vicinity of 

 which ty|)ical sections are found, have been generally emj)l(jyed. 

 In this manncM- the results of the work in New Jersey are brought 

 into conformity with methods generally adopted at the present 

 time in other areas. 



'i'lic work carried on during llic past field season in portions 

 of the area never bei(;re studied t(j any extent on account of the 

 thick C(jvering of recent deposits, reveals the fact that the 

 divisions established chiefiy from an examination in the extreme 

 north, are remarkably persistent. This knowledge has been 

 gained to a large extent from recent well oj^enings and borings 

 made at frecpient intervals by the writer and his assistants. The 

 unconsolidated character of the sediments rendc-r it possible to 

 l)ursue this method of investigation throughout tlie region with 

 the hope of far reaching results. 



(JCNICKAI, STKATTGR A I'll I CM. I'l'.ATUK ICS. 



The geological formations of the coastal area of New Jersey 

 rej)resent a nearly complete secjuence from the Cretaceous to the 

 Pleistocene. They form a series of thin sheets which are inclined 

 slightly to the southeastward, so that successively later forma 

 tions are encountered in j)assing frc^m the nortiiwestern portion 



