- environments.
Dropstones differ from
erratics found in
glacial till in that they are
deposited in a lake or
marine environments.
Dropstones may also be...
- have
occurred during this so-called "cold snap", as
evidenced by
glacial dropstones in the
western parts of the
Tethys Ocean and the
expansion of calcareous...
-
northeast of Lake Huron, with
giant layers of now-lithified till beds,
dropstones, varves, outwash, and
scoured ba****t rocks.
Correlative Huronian deposits...
-
sediments deposited by
melting icebergs or
disintegrating ice
sheets (
dropstones)
volcanic origin lahars lahar m****
flows entering the
ocean marine origin...
-
present or on
older sediments. The
ejecta at
Kilbourne Hole
contains dropstones launched as bombs,
usually greater than 2.5
inches across and a large...
-
modern Iberian Peninsula,
based on the
existence of
Hauterivian ice-rafted
dropstones in Iberia. Cold
conditions are also
known to have
existed in the Southern...
-
glacial movements for
periods prior to
record retention. Also
known as
dropstones,
these can be
correlated with
ocean temperatures and
levels to better...
-
Pangaea (the
southernmost portion of
Pangaea was Gondwana). Ice-rafted
dropstones sourced from
Russia are
indicators of this
northern boundary. The Jur****ic...
- the ac****ulation of snow,
though there may have been
mountain glaciers.
Dropstones and
glendonites in
northeastern Siberia during the
Early to
Middle Jur****ic...
- name-bearing
section at
Gaskiers (Newfoundland) is
packed full of
striated dropstones. Its δ13C
values are very low (pushing 8‰),
consistent with a
period of...
