After all, this man is presumably incapable of differentiating
between ocean sediments and coral terrestrial deposits, nor can he go about analysing tree ring records and so on.
Not exact matches
Before, during and after the PETM, these
sediments were laid down on the sea floor at the edge of the Atlantic
Ocean, at depths of ~ 1000m, on the boundary between the continents and the open o
Ocean, at depths of ~ 1000m, on the boundary
between the continents and the open
oceanocean.
Analysing new data from marine
sediment cores taken from the deep South Atlantic,
between the southern tip of South America and the southern tip of Africa, the researchers discovered that during the last ice age, deep
ocean currents in the South Atlantic varied essentially in unison with Greenland ice - core temperatures.
On glacial - interglacial time scales, atmospheric CO2 is mainly governed by the interplay
between ocean circulation, marine biological activity,
ocean -
sediment interactions, seawater carbonate chemistry and air - sea exchange.
Donnelly led a team of researchers who pinpointed the hurricane peaks after examining 2,000 years worth of storm - thrown sand, which washed from the
ocean into a Massachusetts salt pond, settling as layers of sandy
sediment that was sandwiched
between layers of ever - accumulating mud.
Independent non-thermometer data (so - called proxies, like tree rings, ice cores,
ocean sediments, stalagmites, etc.) also show no warming trend
between 1978 and 2000.
Natural gas reserves come from large quantities of plant and animal remains that have accumulated
between layers of
sediment on the bottoms of lakes and
oceans over millions of years.
For a long time people thought that
ocean pH was regulated ultimately by reactions
between deep seawater and
sediments, but as Walt Allensworth February 5, 2015 at 3:08 pm, says there are so many black, and clear, vents along the midocean ridges spewing acidic water, that these probably maintain
ocean pH instead.
The seasonal climate may relate to changes in the
ocean circulation pattern prior to 4.6 Ma that resulted in an increased temperature and atmospheric pressure gradient between the east coast of North America and the Atlantic Ocean, but this climate phase seems to be only a temporary condition, as underlying and overlying sediment are both consistent with drier condit
ocean circulation pattern prior to 4.6 Ma that resulted in an increased temperature and atmospheric pressure gradient
between the east coast of North America and the Atlantic
Ocean, but this climate phase seems to be only a temporary condition, as underlying and overlying sediment are both consistent with drier condit
Ocean, but this climate phase seems to be only a temporary condition, as underlying and overlying
sediment are both consistent with drier conditions.
By understanding the relationship
between the size, composition and distribution of particles found on the bottom with the motion of the water column above, scientists who study long cores of
ocean sediment can tell how currents have changed or moved over time.