Essays about: "pleistocen"

Showing result 1 - 5 of 10 essays containing the word pleistocen.

1. 1. Grain Size Analysis of Late Pleistocene Loess Deposits, Jersey

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Joakim Edlund; [2022]
   Keywords : Jersey; loess; grain size; ice age; past climate; Jersey; löss; kornstorlek; istid; forntida klimat;

   Abstract : As the world faces the effects of rapid climate change it is essential that we understand how the Earth’s climate has evolved in recent geological history. The island of Jersey harbours loess deposits which hold clues to recent climate change which have not been extensively studied. READ MORE

3. 2. The Magnetic Properties and Fabrics of Upper Pleistocene Loess on La Motte, Jersey, and their Palaeoclimate Implications

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Anya Hawkins; [2022]
   Keywords : last glacial; magnetic susceptibility; AMS; temperature dependent magnetic susceptibility; palaeowind reconstruction;

   Abstract : The island of Jersey is an interesting location for palaeoclimate reconstruction given the likely impact of variations in North Atlantic climate and European ice sheet extent during the last glacial period considering their proximal location. These last glacial climatic variations are recorded in the loess sequence from La Motte, Jersey and in order to reconstruct these changes, a detailed magnetic analysis was performed. READ MORE

4. 3. Size and Abundance of Late Pleistocene Reticulofenestrid Coccoliths from the Eastern Indian Ocean in Relation to Temperature and Aridity

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Jeroen van Dijk; [2017]
   Keywords : coccoliths; abundance; biometry; circular polarized light microscopy; Late Pleistocene; Marine Isotope Stage 11; kokkoliter; mängder; biometri; cirkulär polariserat ljus; pleistocen; Marine Isotope Stage 11;

   Abstract : Measurements on coccolith abundance and mass can be used as a signal of primary productivity and pelagic calcification in response to environmental change. The Leeuwin Current (LC) is known to transport warm and low-salinity waters from the Indo-Pacific Warm Pool (IPWP) southwards along the coast of West Australia. READ MORE

5. 4. Vegetation responses to Late Glacial climate shifts as reflected in a high resolution pollen record from Blekinge, south-eastern Sweden, compared with responses of other climate proxies

   University essay from Lunds universitet/Geologiska institutionen

   Author : Artemis Karlatou-Charalampopoulou; [2016]
   Keywords : lake sediments; Blekinge; SE Sweden; Pleistocene-Holocene boundary; loss on ignition; pollen analysis; high time-resolution; time lags; Earth and Environmental Sciences;

   Abstract : Denna studie fokuserar på en nästan 1700 år lång sjösedimentsekvens från Hässeldala Port i centrala Blekinge, sydöstra Sverige. Den omfattar övergångsperioden mellan pleistocen och holocen, eller mer precist eventen GI-1a och GS-1 samt början av den holocena epoken i iskärnorna, vilket motsvarar de sydsvenska pollenzonerna sen allerød till tidig preboreal. READ MORE

6. 5. The population structure of Late Pliocene and Early Pleistocene Neptunea angulata, Gastropoda and an investigation into bias in the fossil record and museum collections.

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Thomas Owen; [2016]
   Keywords : Bias; age distributions; taphonomy; population structure.; Partiskhet; åldersfördelning; tafonomi; populationsstrukturer.;

   Abstract : The fossil population structure of the gastropod Neptunea angulata from the late Pliocene and Early Pleistocene was investigated in this project in order to contribute to a wider study on the influence of predation on populations and the evolutionary history of organisms. Over time, predator-prey relationships can drive evolution in a way similar to the Red Queen Hypothesis. READ MORE