DOI Seite / Zitierlink:
https://doi.org/10.11588/diglit.9510#0087
72
APPENDIX.
the latter; and thus in 66 or 65 B.C. But his statement is
not corroborated ; and Seneca says explicitly that the island
of 46 A.D. was the second.
There was a terrific eruption with another upheaval in
726 A.D. or thereabouts. This is described by Nicephoros
Patriarches"- and Theophanes Confessorb, and also by Cedren0.
Thus there were upheavals in the bay in 196 B.C. and
46 A.D. and 726 A.D., and perhaps about 65 B.C. also ; but in
the intervals the volcano was quiescent. Consequently, there
is no foundation for M. Fouqu^'s opinion that there was a
period of activity beginning in 196 B.C. and lasting through
the early centuries of the Christian era, and then a period of
quiescence for about a thousand years, ending in the fifteenth
century. After the eruption of 196 B.C. come two periods of
quiescence, of 241 and 680 years respectively; or if the time
from 196 B.C. to 46 A.D. be reckoned as a period of activity,
the following period of quiescence amounts to only 680 years,
and this is followed by another period of quiescence of about
the same length. Now, even supposing that the period of
quiescence before 196 B.C. was twice as long as the period of
quiescence after 46 A.D., the cone did not collapse until about
1556 B.C.; or if this period before 196 B.C. was twice as long
as the period next after that date, the cone did not collapse
until about 678 B.C. But there does not appear to be any
valid reason for supposing that the first of these periods was
twice as long as the second, as M. Fouque suggests. He is
of opinion that the volcano was far more violent before the
first period than before the second, and therefore required
this longer time to rest. But that can only be a matter for
speculation.
A second argument is adduced by M. Fouque", and this is
strictly geological. At the northern point of Therasia the
pumiceous tufa was covered with a thick bed of stones inter-
mixed with sea-shells. A period of fully 1000 or 1200 years
would have been required for the formation and elevation of
" Nicephoros Patriarches, p. 37. b Theophanes Confessor, pp. 338, 339.
° Cedren, p. 454.
APPENDIX.
the latter; and thus in 66 or 65 B.C. But his statement is
not corroborated ; and Seneca says explicitly that the island
of 46 A.D. was the second.
There was a terrific eruption with another upheaval in
726 A.D. or thereabouts. This is described by Nicephoros
Patriarches"- and Theophanes Confessorb, and also by Cedren0.
Thus there were upheavals in the bay in 196 B.C. and
46 A.D. and 726 A.D., and perhaps about 65 B.C. also ; but in
the intervals the volcano was quiescent. Consequently, there
is no foundation for M. Fouqu^'s opinion that there was a
period of activity beginning in 196 B.C. and lasting through
the early centuries of the Christian era, and then a period of
quiescence for about a thousand years, ending in the fifteenth
century. After the eruption of 196 B.C. come two periods of
quiescence, of 241 and 680 years respectively; or if the time
from 196 B.C. to 46 A.D. be reckoned as a period of activity,
the following period of quiescence amounts to only 680 years,
and this is followed by another period of quiescence of about
the same length. Now, even supposing that the period of
quiescence before 196 B.C. was twice as long as the period of
quiescence after 46 A.D., the cone did not collapse until about
1556 B.C.; or if this period before 196 B.C. was twice as long
as the period next after that date, the cone did not collapse
until about 678 B.C. But there does not appear to be any
valid reason for supposing that the first of these periods was
twice as long as the second, as M. Fouque suggests. He is
of opinion that the volcano was far more violent before the
first period than before the second, and therefore required
this longer time to rest. But that can only be a matter for
speculation.
A second argument is adduced by M. Fouque", and this is
strictly geological. At the northern point of Therasia the
pumiceous tufa was covered with a thick bed of stones inter-
mixed with sea-shells. A period of fully 1000 or 1200 years
would have been required for the formation and elevation of
" Nicephoros Patriarches, p. 37. b Theophanes Confessor, pp. 338, 339.
° Cedren, p. 454.