Geology . eastof their exposures nothing is known. It wall be observed that the belts and patches where Newark stratacome to the surface are mostly elongate in a northeast-southwestdirection, and that their longer axes are roughly parallel to the Appa-lachian Mountains and to the present coast line. Of the series, theremay be said to be four principal areas. These are: (1) the area aboutthe Bay of Fundy; (2) the area in the Connecticut River valley;(3) the long belt extending from the Hudson River in the southernpart of Newr York, through New Jersey, Pennsylvania, and Mary-land into Virginia;
Geology . eastof their exposures nothing is known. It wall be observed that the belts and patches where Newark stratacome to the surface are mostly elongate in a northeast-southwestdirection, and that their longer axes are roughly parallel to the Appa-lachian Mountains and to the present coast line. Of the series, theremay be said to be four principal areas. These are: (1) the area aboutthe Bay of Fundy; (2) the area in the Connecticut River valley;(3) the long belt extending from the Hudson River in the southernpart of Newr York, through New Jersey, Pennsylvania, and Mary-land into Virginia; (4) a number of relatively small disconnectedareas in Virginia and North Carolina. From what has preceded, andfrom the general principles already understood, it is needless to saythat the Newark series is unconformable on the older formations onwThich it rests. 1 For an account of the Xewark series see Russell, Bull. 85, U. S. Geol. Surv., 1892Full bibliography to date of publication. THE TRIASSIC Fig. 307.—Map showing the known distribution of the Triassic system in NorthAmerica (Black areas), with conjectures as to its presence where buried (linedareas), and its absence where it was once present (dotted areas). •I QEOLOOY. The Rocks oj the Newark The rocks of the Newark scries are of various sorts, including allthe common varieties of fragments] rocks, some of which arc heredeveloped in unusual phases. There are abundant conglomerates and some breccias, though sandstones and shales make up (he prin-cipal mass of the series. Locally, the system contains a little lime-stone, and in Virginia and North Carolina there is bituminous the shale is sometimes carbonaceous. The conglomerates.— Wherever standing waters came to occupythose parts of the old land surface which warping had brought low,they found upon it a mantle of decomposed and partially decomposedrock, out of which arose basal conglomerates, made up partly of thelocal rock (crystalli
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