Essays about: "varved lake sediment"

Showing result 1 - 5 of 9 essays containing the words varved lake sediment.

  1. 1. Odensjön - A new varved lake sediment record from southern Sweden

    University essay from Lunds universitet/Geologiska institutionen

    Author : Hanna Hertzman; [2021]
    Keywords : Varved lake sediment; late Holocene; organic sediments; diatoms; land-use history; southern Sweden; palaeolimnology; Earth and Environmental Sciences;

    Abstract : Annually laminated (varved) sediments provide opportunities to reconstruct climate change and human impact on the environment with high temporal resolution. Depending on the character of the varves, such sediments can provide insight into the delivery of both autochthonous and allochthonous material from the lake and its catch- ment and answer questions regarding both regional and local responses to climate- and land-use changes. READ MORE

  3. 2. Environmental change during the Holocene : A comparative multi-proxy study of landscape disturbances in Northern Sweden

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Mégane Capel; [2019]
    Keywords : Holocene; Lake-Water TOC; climate; lake sediment; vegetation;

    Abstract : Varved lake sediments were used to provide information on how a landscape is affected by disturbances of different scales, from global (i.e. climatic) to local (i.e. READ MORE

  4. 3. Sedimentology and Catchment Processes of Lake Bolterskaret, Svalbard

    University essay from Uppsala universitet/Luft-, vatten- och landskapslära

    Author : Matilda Elise Ruth Svensson; [2018]
    Keywords : Lacustrine sedimentation; Bolterskaret; late Holocene; Climate change; Varves;

    Abstract : Lacustrine sediments are important archives of landscape and climate evolution. Varved sediments offer a high-resolution archive enabling studies on annual and seasonal scale. Understanding the alteration of sedimentation in glacial lakes under a changing climate is important for paleoclimate reconstructions. READ MORE

  5. 4. Sedimentation in a small lake, more complex than previously assumed. : Bathymetrical and geochemical sediment analyses in Kassjön (63°55´ N, 20°01´ E).

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Viktor Gydemo Östbom; [2017]
    Keywords : Kassjön; Sedimentation; Element distribution; Small lake; Bathymetry; X-ray fluorescence spectrometry;

    Abstract : For studies using lake sediments as a medium, understanding factors governing sediment distribution and properties is crucial for making accurate interpretations and conclusions. General lake sedimentation theory is however mainly based on larger lakes and systems, potentially leading to biased sampling and data interpretation when applied on a smaller system. READ MORE

  6. 5. Lake condition changes of a boreal lake over the past ca. 6500 years based on varve geochemistry

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Jora Ligtenberg; [2017]
    Keywords : varved lake sediment; total element concentrations; biogenic silica; lake-water organic carbon; Holocene;

    Abstract : The purpose of this study was to assess changes in the in-lake conditions of lake Kassjön, northern Sweden, in response to environmental and climate changes over the past ca. 6500 years. READ MORE