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| Keywords: The Quarterly journal of the Geological Society of London (12733582925).jpg 72 A B WYNNE ON SOME EEATUEES IN THE <br> tain on the Indus below Attock Red and variegated gypseous <br> rocks resembling those in the Murree group previously mentioned <br> occur far down in the ravine of the Haro river near its source and at <br> Doongagully on the new mountain-road from Murree to Abbottabad <br> while the possibility of the extension of the hill type of Nummu- <br> litic limestone southwards beneath the Pot'war country is supported <br> by its reappearance at the hill of Khairee Moorut ten miles south <br> of the junction-line referred to and west by south from Eawul <br> Pindi <br> Although the line of junction presents ordinarily the appearance <br> of a single line of contact often concealed owing to its position at <br> the foot of hills this is not a constant condition ; for it is accompa- <br> nied in places by somewhat parallel lines of the same kind situated <br> within very short distances and traceable into close convergence if <br> not into absolute unity with the main one see section fig 3 It <br> also throws off a branch north of Eawul Pindi having all the <br> characters by which it is itself distinguished and bringing the same <br> sort of Lower Murree rocks into junction with the Hill-limestones <br> This branch diverging at an acute angle from the north side of the <br> line passes westward along the outer foot of the ridge behind <br> which are the ruins of the ancient Taxila at Shah-ka-deri <br> The whole aspect of the contact along this line presents none of <br> the features or irregular outlines which might be expected to result <br> from unconformity overlap or limit of deposition ; and further <br> it might be urged that nowhere along the junction are the newer <br> rocks on one side of the line or its branches made up of any recog- <br> nizable detritus of the older beds on the other side ; nor indeed <br> are any prominent coarse detrital deposits such as might indicate <br> an adjacent shore to be found in the lower strata of the Murree <br> group a few minor beds of coarse sandstone at one part of the <br> junction only in section fig 3 b l having been met with along the <br> whole region of contact from Oori to Kohat a distance of fully 200 <br> miles Nor does it appear that the basal beds of the known Tertiary <br> deposits in the Simla area along their inner and even more ex- <br> tended boundary differ in these respects from the junction beds of <br> the Tertiary belt with the Hill-rocks in this region <br> The contact here on the contrary presents straight or but slightly <br> curved lines like those of fractured dislocation without sinuosities <br> resembling deep bays creeks or promontories ; nor are there visible <br> signs of islands lying off the supposed ancient coast the detached <br> elongated hill of Khairee Moorut being apparently enclosed between <br> lines of fault <br> In a case of ordinary unconformity or overlap subjected to denu- <br> dation discordant patches of the Murree beds might be expected to <br> occur resting on the older rocks ; but these have not been met with <br> any detached portions which have been found being apparently let in <br> among the older rocks by faults rather than folded into contortions <br> 16 Under all these circumstances it is difficult to recognize in <br> this and the Simla region the same relations among formations or <br> groups several of which may be fairly considered identical and in 35765925 110599 51125 Page 71 Text v 30 http //www biodiversitylibrary org/page/35765925 1874 Geological Society of London Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 30 1874 Geology Periodicals Smithsonian Libraries bhl page 35765925 dc identifier http //biodiversitylibrary org/page/35765925 smithsonian libraries Information field Flickr posted date ISOdate 2014-02-24 Check categories 2015 August 26 CC-BY-2 0 BioDivLibrary https //flickr com/photos/61021753 N02/12733582925 2015-08-26 20 01 37 cc-by-2 0 PD-old-70-1923 The Quarterly journal of the Geological Society of London 1874 Photos uploaded from Flickr by Fæ using a script | ||||
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