S_KøbenhavnFraBispetidTilBorgertid_1840

T H E G U I G I N O F T H E L Æ N H

The land was fo rm ed in quaternanj time by moraine materiel, mostly Z Z \ a” r Cl“ y ’J eP ° slted blJ the ice sheet. Themoraine deposits in fig. page 3 indicate the varying positions o f the ice front. r i l ' 6 t ' i ° n pmje * Sh0WS deP ° sits o f on alder moraine displaced and 1 def oslts ef st onhd in a f ew places. The moraines ave usuallu de- posited directly on the younger cretaceous limestone (ca lcareous sand and s Z Z t e T T h the surfacesof are inplaces glacially n o n e 1(1 ) r i * T 0US h™esto» e isJ ran sversed by a fault line (the fig. t u 11 , ^ dlsPlacem ent ls about 70 m etres (ah. 200 fe e t). Older lagers oj chalk (wh ite chalk) are to be fonnd northeast o f the fault line at a denth Of about UO to 120m etres (350 f e e t ), and lo 20 to kO m etres (60 to 120 fe e t). 1 ' Clay and gravel from the moraines have through the ages been used fo r budding matenals, whereas the limestone has been little used. By a series o f dnllings through layers below the presen t sea -level deposits have been found originating in fresh and in bracldsh wa ter; their age has been fix ed by a pollen analysis by means o f which the transgression curve has been approxim ately determ ined fo r the period o f time belw een the Cr°fn T e? ! a ° r theuAn cy lus Period (when the sea -level was at least 20 metres (00 fe e t) low er than it is n ow ) and the presen t time. D isplacements o f the shore line are indicatecl in diagram at page 9 (cf. map at page 6). 1 y The transgression in the Litorinci-period is illustrated by fig. page 8. ° f the d ifferen t ice-borders ånd f f l ^ f contributedto the o f the land and. o f the surrounding waters.

THE GLACIAL AGE

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THE UNDERGROUND

ALTERATIONS TO THE SHORE LINE AF TER THE GLACIAL AGE

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