Macrofossil studies of Lateglacial sediments from Regstrup, north-west Sjælland, Denmark

IF 1.2 4区地球科学 Q2 Earth and Planetary Sciences

Bulletin of the Geological Society of Denmark Pub Date : 2022-03-30 DOI:10.37570/bgsd-2022-70-04

O. Bennike, Lone Claudi-Hansen, Betina Magnussen, P. Wiberg‐Larsen

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引用次数: 1

Abstract

Studies of macrofossils indicate that the vegetation near Regstrup in north-west Sjælland, Denmark, from c. 13 600 to 13 500 cal. years BP was dominated by dwarf-shrub heaths. Betula pubescens (downy birch) arrived at c. 13 500 cal. years BP and became common after c. 13 200 cal. years BP. Open forests with B. pubescens and Populus tremula (aspen) dominated until c. 12 500 cal. years BP, indicating that an Allerød-type environment persisted for c. 350 years after the cooling at the onset of the Younger Dryas, which is dated to c. 12 850 years BP in ice cores from Green-land. Betula nana was common after c. 12 500 cal. years BP, indicating a return to a tundra-like landscape with dwarf-shrub heaths. The fauna included Rangifer taran-dus (reindeer), Castor fiber (Eurasian beaver) and possibly Lemmus lemmus (Norway lemming). The lake deposits contain remains of many species of aquatic plants and animals, including three species of fish. The flora and fauna indicate that the lake water was fairly nutrient-rich and alkaline.

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丹麦Sjælland西北部Regstrup冰川沉积物的宏观化石研究

对大型化石的研究表明，从大约13600年到13500年BP，丹麦Sjælland西北部Regstrup附近的植被主要是矮生灌木石南。毛桦树（绒毛桦树）在公元前13500年左右到达，并在公元前13200年后变得普遍。在大约12500年BP之前，以毛白杨和白杨（白杨）为主的开放森林一直占主导地位，这表明在年轻干旱期开始冷却后，Allerød型环境持续了大约350年，在格陵兰的冰芯中，这种环境可以追溯到大约12500多年BP。南桦在英国石油公司约12500年后很常见，这表明它又回到了苔原般的地貌，长有矮生灌木石南。动物群包括Rangifer taran dus（驯鹿）、Castor fiber（欧亚海狸），可能还有Lemmus Lemmus（挪威旅鼠）。湖泊沉积物中有许多水生动植物的遗骸，其中包括三种鱼类。动植物群表明，湖水营养丰富，呈碱性。

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来源期刊

Bulletin of the Geological Society of Denmark GEOSCIENCES, MULTIDISCIPLINARY-

CiteScore

2.80

自引率

16.70%

发文量

审稿时长

>12 weeks

期刊介绍： The Bulletin publishes contributions of international interest in all fields of geological sciences on results of new work on material from Denmark, the Faroes and Greenland. Contributions based on other material may also be submitted to the Bulletin if the subject is of relevance for the geology of the area of primary interest.