Evolution (Biology); Glacial epoch; Human beings -- Origin; Human evolution
Number 2. Stratified loam and sand, 5 feet thick, containing at one
spot near the base of the cliff, at s, Figure 48, Cardium edule, Tellina
solidula, and Turritella, with fragments of other shells. Between Number
2 and the Chalk Number 1, there usually intervenes a breccia of broken
flints.
Number 3. Unstratified blue clay or till, with small pebbles and
fragments of Scandinavian rocks occasionally scattered through it, 20
feet thick.
Number 4. A second unstratified mass of yellow and more sandy clay 40
feet thick, with pebbles and angular polished and striated blocks of
granite and other Scandinavian rocks, transported from a distance.
Number 5. Stratified sands and gravel, with occasionally large erratic
blocks; the whole mass varying from 40 to 100 feet in thickness, but
this only in a few spots.
The angularity of many of the blocks in Numbers 3 and 4, the glaciated
surfaces of others, and the transportation from a distance attested by
their crystalline nature, prove them to belong to the northern drift or
glacial period.
It will be seen that the four subdivisions 2, 3, 4, and 5 begin to rise
at B, Figure 47, and that at C, where the cliff is 180 feet high, there
is a sharp flexure shared equally by the Chalk and the incumbent drift.
Between D and G, Figure 48, we observe a great fracture in the rocks
with synclinal and anticlinal folds, exhibited in cliffs nearly 300 feet
high, the drift beds participating in all the bendings of the Chalk;
that is to say, the three lower members of the drift, including Number
2, which, at the point S in this diagram, contains the shells of Recent
species before alluded to.
Near the northern end of the Moens Klint, at a place called "Taler,"
more than 300 feet high, are seen similar folds, so sharp that there
is an appearance of four distinct alternations of the glacial and
Cretaceous formations in vertical or highly inclined beds; the Chalk at
one point bending over so that the position of all the beds is reversed.
[Illustration: Figure 49. Post-Glacial Disturbances]
(FIGURE 49. POST-GLACIAL DISTURBANCES OF VERTICAL, FOLDED,
AND SHIFTED STRATA OF CHALK AND DRIFT, IN THE DRONNINGESTOL,
MOEN, HEIGHT 400 FEET (PUGGAARD).
1. Chalk with flints.
2. Marine stratified loam, lowest member of glacial formation.
3. Blue clay or till, with erratic blocks unstratified.
4. Yellow sandy till, with pebbles and glaciated boulders.
5. Stratified sand and gravel with erratics.)
But the most wonderful shiftings and faultings of the beds are
observable in the Dronningestol part of the same cliff, 400 feet
in perpendicular height, where, as shown in Figure 49, the drift is
thoroughly entangled and mixed up with the dislocated Chalk.
Public-domain text, read in full here on John Shaqi.
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