Possible triggering of Heinrich events by ice-load-induced earthquakes

@article{Hunt1998PossibleTO,
  title={Possible triggering of Heinrich events by ice-load-induced earthquakes},
  author={Allen G. Hunt and Peter Malin},
  journal={Nature},
  year={1998},
  volume={393},
  pages={155-158}
}
  • A. Hunt, P. Malin
  • Published 1 May 1998
  • Environmental Science, Geography, Geology
  • Nature
North Atlantic sediments dating from the last ice age contain layers of rock fragments from northeastern Canada (so-called Heinrich layers). Like modern iceberg-borne sediments from Greenland, these layers have been attributed to ice-rafting episodes. Six Heinrich layers have been documented and correlated with climate changes. The layers, which are several centimetres thick, contain negligible amounts of foraminifera (which accumulate at a few millimetres per century), implying that they were… 

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References

SHOWING 1-10 OF 19 REFERENCES

Evidence for massive discharges of icebergs into the North Atlantic ocean during the last glacial period

SEDIMENTS in the North Atlantic ocean contain a series of layers that are rich in ice-rafted debris and unusually poor in foraminifera1. Here we present evidence that the most recent six of these

Origin and Consequences of Cyclic Ice Rafting in the Northeast Atlantic Ocean During the Past 130,000 Years

  • H. Heinrich
  • Environmental Science, Geography
    Quaternary Research
  • 1988

Ice‐rafted debris associated with binge/purge oscillations of the Laurentide Ice Sheet

The North Atlantic sediment record suggests quasi-periodic (7000- to 12,000-year period) ice-rafted debris (IRD) depositions during at least the last glacial period. The cause of these Heinrich

Correlations between climate records from North Atlantic sediments and Greenland ice

OXYGEN isotope measurements in Greenland ice demonstrate that a series of rapid warm-cold oscillations—called Dansgaard–Oeschger events—punctuated the last glaciation1. Here we present records of sea

Detrital carbonate-rich sediments, northwestern Labrador Sea: Implications for ice-sheet dynamics and iceberg rafting (Heinrich) events in the North Atlantic

Much of the bed of the central and eastern sectors of the Laurentide Ice Sheet was underlain by Paleozoic carbonates. We propose that pulses of detrital carbonate-rich sediments in two cores from the

Spatial Correlation between Seismicity and Postglacial Rebound in Eastern Canada

The degree to which glaciation-deglaciation can influence earthquake activity in eastern Canada depends on how weakened features in structures created by tectonic activity react to glacially-induced

A 50,000-Year Record of Climate Oscillations from Florida and Its Temporal Correlation with the Heinrich Events

TLDR
Oscillations of Pinus (pine) pollen in a 50,000-year sequence from Lake Tulane, Florida, indicate that there were major vegetation shifts during the last glacial cycle and seems to be temporally correlated with the North Atlantic Heinrich events.

Fennoscandian Earthquakes: Whole Crustal Rupturing Related to Postglacial Rebound

Local and regional earthquake locations provide seismic evidence that large shield earthquakes have occurred in northern Fennoscandia. These paleoearthquakes, with fault lengths of up to 160

Interhemispheric Correlation of Late Pleistocene Glacial Events

TLDR
The last termination began suddenly and simultaneously in both polar hemispheres before the resumption of the modern mode of deep-water production in the Nordic Seas and interhemispheric coupling implies a global atmospheric signal rather than regional climatic changes caused by North Atlantic thermohaline switches or Laurentide ice surges.

Earthquakes at North-Atlantic passive margins : neotectonics and postglacial rebound

Summary, conclusions and recommendations.- Origin and Structure of the Passive Margins.- Fifty Million Years of "Passive Margin" Deformation in North West Europe.- Evolution of the Arctic-North