Sentences with phrase «of tsunami deposits»

or you can read the following excerpts and see Sequential radiocarbon measurement of bulk peat for high - precision dating of tsunami deposits

Not exact matches

Had Obama's financial tsunami come in on paper, the process of opening, logging and depositing it would have overwhelmed just about any political staff in the pre-internet era.

Scientists predict the boundary layer — a mix of original peak ring materials, tsunami deposits and melted rocks that fell from the sky — should span hundreds of feet.

The tsunami was at least three times the size of a 1946 tsunami that was the most destructive in Hawaii's recent history, according to the new study that examined deposits believed to have come from the extreme event and used models to show how it might have occurred.

«These include the sharp mud - over-peat contacts that are laterally continuous over 5 kilometers, changes in fossil foraminifera assemblages across the buried peat contacts, long - lasting submergence also derived from fossil foraminifera records, and radiocarbon ages of plant macrofossils taken from buried peat deposits that are consistent with other southern Cascadia earthquake chronologies derived from buried peat and tsunami deposits.»

By that definition, the team crossed the K - Pg boundary last week, at a depth of 620 meters, when drillers left fossil - containing limestone layers and entered sandy tsunami deposits.

The biggest marine landslide ever recorded happened 7,200 years ago off the coast of Norway, and there was a tsunami, but it was a far cry from leaving deposits 200 meters above sea level,» Bryant says.

The presence of this chaotic deposit suggested that the tsunami was at least three or four meters [10 to 13 feet] at the shoreline.»

Judging from geological traces of two even older tsunami deposits, Koji Minoura, an Earth scientist at Tohoku University in Sendai, and his colleagues proposed in 2001 that giant waves visit the region about every 800 - 1,100 years (K. Minoura et al..

Only the far - reaching inland surge of a tsunami can carry sand into this cave, where it can then be deposited layer by layer, tsunami by tsunami.

Sand layers deposited in a near - coastal cave — neatly demarcated by bat droppings — tell of epochs of frequent tsunamis separated by long periods of quiescence.

Then, about five lesser tsunamis, to judge by the thickness of their deposits, sloshed into the cave in the next 500 years.

They found a record of successive earthquakes in a sequence of stacked tsunami deposits on the coastal plain.

He journeys to the center of the Chicxulub impact crater in Mexico and to the site of purported tsunami deposits on a Texas ranch.

Instead, we hypothesized that these deposits were the result of a large tsunami that impacted the Bermuda island platform during the mid-Pleistocene.