Sentences with phrase «sea sediments made»

Thousands of years ago, sea sediments made by different chemical compounds formed these striped patterns across the land.

Not exact matches

The study suggests that layers of sediments perhaps 10 to 20 meters thick can seal the sea floor and make seamounts the most important conduits for heat and fluid flow — especially on the sloping flank of a midocean ridge, says oceanographer John Sclater of the Scripps Institution of Oceanography in La Jolla, California.

More than 12,000 years ago, Pine Island and Thwaites glaciers were grounded on top of a large wedge of sediment, and were buttressed by a floating ice shelf, making them relatively stable even though they rested below sea level.

Most of our sea - level records are based on the chemical make - up of sediment cores, which are hard to date — estimates can be thousands of years out.

Fumio Inagaki from the Japan Agency for Marine - Earth Science and Technology, who made the discovery, says the lake probably formed when carbon dioxide seeped out through the ocean floor from a deep - sea volcano and pooled under a blanket of solid, icelike CO2 hydrate and deep - sea sediment.

The slimy mats acted as a barrier between the water above and the sediments below, preventing oxygen from reaching under the sea floor and making it largely uninhabitable.

The new measurements in this research were made with cores that showed the results of massive amounts of sediments released by subsea landslides during a subduction zone earthquake — a catastrophic event beneath the sea as well as on land.

They analysed sediments from a shallow Atlantic Ocean shelf where sediment accumulates faster than it does in the deep sea, making it easier to see seasonal fluctuations in the amount deposited.

In their study of sediments from the Black Sea, Eckert et al. (2013, p. 431 in this issue of Geology), make this step by providing, for the first time, a basin - wide reconstruction of the evolution of the chemocline in this silled coastal basin over the Holocene.

It is also possible for cold climates to increase chemical weathering in some ways, by lowering sea level to expose more land to erosion (though I'd guess this can also increase oxydation of C in sediments) and by supplying more sediments via glacial erosion for chemical weathering (of course, those sediments must make it to warmer conditions to make the process effective — downhill and downstream, or perhaps via pulsed ice ages -LRB-?)-RRB-.

This is not necessarily a contradiction to the other data series, because the two sediment cores used are located in the area of the deep outflow of Labrador Sea Water — but this is only one of two deep currents that together make up the southward part of the overturning circulation of the Atlantic, and thus the heat transport to the north.

Then, by analysing the sediments for chemical fossils made by certain microscopic plants that live in sea ice and the surrounding oceans, Knies and his co-workers were able to fingerprint the environmental conditions as they changed through time.

Union of Concerned Scientists: Human Fingerprints Science Daily: Deep - sea Sediments Could Safely Store Man - made Carbon Dioxide Discovery Channel: Global Warming

External stressors can make it difficult to define the parameters of target ecosystem services: While an emerging blue carbon PES scheme might successfully protect a mangrove from deforestation, it may have little influence on changes in upstream sediment loads or on sea - level rise.

That makes me wonder, is there a critical rate of sea level rise above which the reefs can't collect sediment quickly enough to keep up?

There is a diffrence of permafrost and sea sediment methane — why not make the diffrence?

Hemant Shah, president and CEO of Newark, Calif. - based RMS, identifies three troubling factors: the city is sinking due to thick sediments accumulating along the Atlantic Ocean's basin; accelerated climate change in making the sea level rise, and the level of Atlantic basin hurricane activity has increased in recent years.