. The Quarterly journal of the Geological Society of London. dependently of the question whether the beds c2 in this sectionbelong to the central ridge or to the flanking rocks, those markedd2 and d? (the description of which so exactly coincides with theMurree group) still appear unconformable to c2, the central limestone ;and yet there is only wanting an apparently very probable line of faulton each side to make this section resemble a modification of the samekind of feature as is represented in our Shah-durrah and Chuttursections (figs. 3 and 4), where the discordance has no similarity toun
. The Quarterly journal of the Geological Society of London. dependently of the question whether the beds c2 in this sectionbelong to the central ridge or to the flanking rocks, those markedd2 and d? (the description of which so exactly coincides with theMurree group) still appear unconformable to c2, the central limestone ;and yet there is only wanting an apparently very probable line of faulton each side to make this section resemble a modification of the samekind of feature as is represented in our Shah-durrah and Chuttursections (figs. 3 and 4), where the discordance has no similarity tounconformity. It may also be instructive to compare this Dundelee section withanother in the Potwar district, some 60 miles to the , and across Diljubba Mountain, part of a chain of hillswhich runs from the Salt range almost directly towards Dundelee,but vanishes before reaching the Jhilam river. The strike of thebeds is parallel to that of the ridge; and the section is given frommemory. Fig. 6.—Section across Diljubba Mountain. 1. Salt-range series, including Cretaceous?, Triassic, Silurian, and Salt marl & Nummulitic Limestone. 3. Grey Sandstones, Eed Clays, &c. A (bones).4. Eed zone B. 5. Fault. The Nummulitic limestone in this section has not its full develop-ment ; but it shows well the parallelism between this and the suc-ceeding strata. The fault shown is the probable extension of along fracture, most strikingly seen further to the west; and no signof unconformity appears in the section. Whether the movements connected with the origin of the Hima-laya (as out-thrust produced by settlement, &c), to some of whichMr. Medlicott ascribes the succession of abnormal junctions ofthe outer Tertiary zones, may have differed in kind, intensity, or innumber as well as in direction here, is as yet mere matter of specu-lation ; but it is at least possible thaj; in the neighbourhood of thisregion the greater variety in the bearings of the vast mountain
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Keywords: ., bookcentury1800, bookdecade1840, bookidquarte, booksubjectgeology
