Environmental conditions in northwestern Russia during MIS 5 inferred from the pollen stratigraphy in a sediment core from Lake Ladoga

Andrei A. Andreev, Lyudmila S. Shumilovskikh, Larisa A. Savelieva, Raphael Gromig, Grigory B. Fedorov, Anna Ludikova, Bernd Wagner, Volker Wennrich, Dominik Brill, Martin Melles

Результат исследований: Научные публикации в периодических изданияхстатьянаучнаярецензирование

3 Цитирования (Scopus)

Выдержка

Lake Ladoga hosts preglacial sediments, although the Eurasian ice sheet overrode the area during the LGM. These sediments were first discovered by a seismic survey and are investigated using a 22.75-m-long core. Its upper 13.30 m comprise Holocene and Lateglacial sediments separated from the lower 11.45 m of preglacial sediments by a hiatus. They consist of highly terrigenous lacustrine sediments, which according to OSL dating, were deposited during an early stage of the last ice age (MIS 5). The palynological data allow a first reconstruction of the Early Weichselian environmental history for northwestern Russia. Birch and alder forests with broad-leaved taxa dominated during MIS 5d (c. 118–113 ka), suggesting a climate more favourable than in the Holocene. A high content of well-sorted sands and poorly preserved palynomorphs indicates a shallow-water environment at least temporarily. More fine-grained sediments and better preserved organic remains suggest deeper water environments at the core location during MIS 5c (c. 113–88 ka). Pine and spruce became dominant, while broad-leaved taxa started to disappear, especially after c. 90 ka, pointing to a gradual climate cooling. An increase in open herb-dominated habitats at the beginning of MIS 5b (c. 88–86 ka) reflects a colder and dryer climate. However, later (c. 86–82 ka) pine and spruce again became more common. Birch and alder forests dominated in the area c. 82–80 ka (beginning of MIS 5a). Although open treeless habitats also became more common at this time, a slight increase in hazel may point to somewhat warmer climate conditions coinciding with the beginning of MIS 5a. The studied sediments also contain numerous remains of freshwater algae and cysts of marine and brackish-water dinoflagellates and acritarchs documenting that the present lake basin was part of a brackish-water basin during the Early Weichselian, probably as a gulf of the Pre-Baltic Sea.

Язык оригиналаанглийский
Страницы (с-по)377-386
Число страниц10
ЖурналBoreas
Том48
Номер выпуска2
DOI
СостояниеОпубликовано - 1 апр 2019

Ключевые слова

    Предметные области Scopus

    • Геология
    • Экология, эволюция поведение и систематика
    • Археология

    Цитировать

    Andreev, Andrei A. ; Shumilovskikh, Lyudmila S. ; Savelieva, Larisa A. ; Gromig, Raphael ; Fedorov, Grigory B. ; Ludikova, Anna ; Wagner, Bernd ; Wennrich, Volker ; Brill, Dominik ; Melles, Martin. / Environmental conditions in northwestern Russia during MIS 5 inferred from the pollen stratigraphy in a sediment core from Lake Ladoga. В: Boreas. 2019 ; Том 48, № 2. стр. 377-386.
    @article{2982e7fae53347eea839eb153d8d33b2,
    title = "Environmental conditions in northwestern Russia during MIS 5 inferred from the pollen stratigraphy in a sediment core from Lake Ladoga",
    abstract = "Lake Ladoga hosts preglacial sediments, although the Eurasian ice sheet overrode the area during the LGM. These sediments were first discovered by a seismic survey and are investigated using a 22.75-m-long core. Its upper 13.30 m comprise Holocene and Lateglacial sediments separated from the lower 11.45 m of preglacial sediments by a hiatus. They consist of highly terrigenous lacustrine sediments, which according to OSL dating, were deposited during an early stage of the last ice age (MIS 5). The palynological data allow a first reconstruction of the Early Weichselian environmental history for northwestern Russia. Birch and alder forests with broad-leaved taxa dominated during MIS 5d (c. 118–113 ka), suggesting a climate more favourable than in the Holocene. A high content of well-sorted sands and poorly preserved palynomorphs indicates a shallow-water environment at least temporarily. More fine-grained sediments and better preserved organic remains suggest deeper water environments at the core location during MIS 5c (c. 113–88 ka). Pine and spruce became dominant, while broad-leaved taxa started to disappear, especially after c. 90 ka, pointing to a gradual climate cooling. An increase in open herb-dominated habitats at the beginning of MIS 5b (c. 88–86 ka) reflects a colder and dryer climate. However, later (c. 86–82 ka) pine and spruce again became more common. Birch and alder forests dominated in the area c. 82–80 ka (beginning of MIS 5a). Although open treeless habitats also became more common at this time, a slight increase in hazel may point to somewhat warmer climate conditions coinciding with the beginning of MIS 5a. The studied sediments also contain numerous remains of freshwater algae and cysts of marine and brackish-water dinoflagellates and acritarchs documenting that the present lake basin was part of a brackish-water basin during the Early Weichselian, probably as a gulf of the Pre-Baltic Sea.",
    keywords = "INTERGLACIAL-GLACIAL CYCLE, BALTIC SEA, CLIMATE, SHIFTS",
    author = "Andreev, {Andrei A.} and Shumilovskikh, {Lyudmila S.} and Savelieva, {Larisa A.} and Raphael Gromig and Fedorov, {Grigory B.} and Anna Ludikova and Bernd Wagner and Volker Wennrich and Dominik Brill and Martin Melles",
    year = "2019",
    month = "4",
    day = "1",
    doi = "10.1111/bor.12382",
    language = "English",
    volume = "48",
    pages = "377--386",
    journal = "Boreas",
    issn = "0300-9483",
    publisher = "Wiley-Blackwell",
    number = "2",

    }

    Environmental conditions in northwestern Russia during MIS 5 inferred from the pollen stratigraphy in a sediment core from Lake Ladoga. / Andreev, Andrei A.; Shumilovskikh, Lyudmila S.; Savelieva, Larisa A.; Gromig, Raphael; Fedorov, Grigory B.; Ludikova, Anna; Wagner, Bernd; Wennrich, Volker; Brill, Dominik; Melles, Martin.

    В: Boreas, Том 48, № 2, 01.04.2019, стр. 377-386.

    Результат исследований: Научные публикации в периодических изданияхстатьянаучнаярецензирование

    TY - JOUR

    T1 - Environmental conditions in northwestern Russia during MIS 5 inferred from the pollen stratigraphy in a sediment core from Lake Ladoga

    AU - Andreev, Andrei A.

    AU - Shumilovskikh, Lyudmila S.

    AU - Savelieva, Larisa A.

    AU - Gromig, Raphael

    AU - Fedorov, Grigory B.

    AU - Ludikova, Anna

    AU - Wagner, Bernd

    AU - Wennrich, Volker

    AU - Brill, Dominik

    AU - Melles, Martin

    PY - 2019/4/1

    Y1 - 2019/4/1

    N2 - Lake Ladoga hosts preglacial sediments, although the Eurasian ice sheet overrode the area during the LGM. These sediments were first discovered by a seismic survey and are investigated using a 22.75-m-long core. Its upper 13.30 m comprise Holocene and Lateglacial sediments separated from the lower 11.45 m of preglacial sediments by a hiatus. They consist of highly terrigenous lacustrine sediments, which according to OSL dating, were deposited during an early stage of the last ice age (MIS 5). The palynological data allow a first reconstruction of the Early Weichselian environmental history for northwestern Russia. Birch and alder forests with broad-leaved taxa dominated during MIS 5d (c. 118–113 ka), suggesting a climate more favourable than in the Holocene. A high content of well-sorted sands and poorly preserved palynomorphs indicates a shallow-water environment at least temporarily. More fine-grained sediments and better preserved organic remains suggest deeper water environments at the core location during MIS 5c (c. 113–88 ka). Pine and spruce became dominant, while broad-leaved taxa started to disappear, especially after c. 90 ka, pointing to a gradual climate cooling. An increase in open herb-dominated habitats at the beginning of MIS 5b (c. 88–86 ka) reflects a colder and dryer climate. However, later (c. 86–82 ka) pine and spruce again became more common. Birch and alder forests dominated in the area c. 82–80 ka (beginning of MIS 5a). Although open treeless habitats also became more common at this time, a slight increase in hazel may point to somewhat warmer climate conditions coinciding with the beginning of MIS 5a. The studied sediments also contain numerous remains of freshwater algae and cysts of marine and brackish-water dinoflagellates and acritarchs documenting that the present lake basin was part of a brackish-water basin during the Early Weichselian, probably as a gulf of the Pre-Baltic Sea.

    AB - Lake Ladoga hosts preglacial sediments, although the Eurasian ice sheet overrode the area during the LGM. These sediments were first discovered by a seismic survey and are investigated using a 22.75-m-long core. Its upper 13.30 m comprise Holocene and Lateglacial sediments separated from the lower 11.45 m of preglacial sediments by a hiatus. They consist of highly terrigenous lacustrine sediments, which according to OSL dating, were deposited during an early stage of the last ice age (MIS 5). The palynological data allow a first reconstruction of the Early Weichselian environmental history for northwestern Russia. Birch and alder forests with broad-leaved taxa dominated during MIS 5d (c. 118–113 ka), suggesting a climate more favourable than in the Holocene. A high content of well-sorted sands and poorly preserved palynomorphs indicates a shallow-water environment at least temporarily. More fine-grained sediments and better preserved organic remains suggest deeper water environments at the core location during MIS 5c (c. 113–88 ka). Pine and spruce became dominant, while broad-leaved taxa started to disappear, especially after c. 90 ka, pointing to a gradual climate cooling. An increase in open herb-dominated habitats at the beginning of MIS 5b (c. 88–86 ka) reflects a colder and dryer climate. However, later (c. 86–82 ka) pine and spruce again became more common. Birch and alder forests dominated in the area c. 82–80 ka (beginning of MIS 5a). Although open treeless habitats also became more common at this time, a slight increase in hazel may point to somewhat warmer climate conditions coinciding with the beginning of MIS 5a. The studied sediments also contain numerous remains of freshwater algae and cysts of marine and brackish-water dinoflagellates and acritarchs documenting that the present lake basin was part of a brackish-water basin during the Early Weichselian, probably as a gulf of the Pre-Baltic Sea.

    KW - INTERGLACIAL-GLACIAL CYCLE

    KW - BALTIC SEA

    KW - CLIMATE

    KW - SHIFTS

    UR - http://www.scopus.com/inward/record.url?scp=85060739230&partnerID=8YFLogxK

    UR - http://www.mendeley.com/research/environmental-conditions-northwestern-russia-during-mis-5-inferred-pollen-stratigraphy-sediment-core

    U2 - 10.1111/bor.12382

    DO - 10.1111/bor.12382

    M3 - Article

    VL - 48

    SP - 377

    EP - 386

    JO - Boreas

    JF - Boreas

    SN - 0300-9483

    IS - 2

    ER -