Week 44
This animal is best known for its association with a long-lost ice sheet.
What is an elephant?
The level of the sea surface relative to the solid Earth surface.
Relative sea level (RSL)
These are sensitive barometers of climate change.
Glaciers and ice caps (GIC)
A fossilized remnant of a single celled protist that is disconnected from the living organism.
What is a dinoflagellate cyst?
The most useful fruit to determine the burial date of a sample.
What is a banana (plot)?
These play a crucial role in preserving 16-million- year-old sediments on Iceland.
What are lava flows?
The response of the lithosphere to ice sheet loading and unloading.
What is glacioisostasy?
The first, most crucial and time consuming step for glacier reconstruction.
What is geomorphological mapping?
The "highway of water" between the Arctic and Atlantic Oceans.
What is Fram Strait?
These are formed when subglacial eruptions breach ice surface and lava caps the eruptives.
What are Tuyas?
These features are formed when a volcanic fissure erupts underneath an ice sheet but does not breach the surface.
What are hyaloclastite ridges?
The maximum elevation attained by the sea.
What is the marine limit?
These often have a wide range of dates and are incompatible with basal sliding.
What are autochthonous block fields?
Biomarker that is used as an indicator of sea ice.
What is IP25?
These are formed by sediment accumulation at the mouth of troughs on glaciated shelves.
What are trough mouth fans?
This sedimentary sequence captures the transition from a warm Pliocene climate to a cold Pleistocene in Iceland.
What is Tjörnes?
This method is used to determine the validity of numerical model predictions.
What is hindcasting?
This common error causes cosmogenic nuclide dates to be too old in areas with limited erosion.
What is inheritance?
Lake sediment proxy that can help us track glacier changes through time.
What is glacial flour?
This is a problem facing radiocarbon dates from bottom-feeders.
What is the Portlandia effect?
This major event occurred on Iceland around 15.3 to 14.6 ka BP
What is the collapse of the Iceland Ice Sheet?
These include salt marshes, isolation basins, and raised beaches.
These insects are used to infer past summer temperatures (July).
What are chironomids?
Transfer functions used to establish species-temperature relations
What is the Modern Analog Technique
Awesome course at UNIS providing insight into the development of the Arctic through the Quaternary Period.
AG326/826 :)