Environmental changes of the stadial/interstadial type during the Late Saalian (MIS-6) – Multi-proxy record at the Wola Starogrodzka site, central Poland

AbstractResults of OSL dating and sedimentary studies from the profile of the low alluvial terrace of the middle Warta River are presented. The samples were dated using the single-aliquot regenera-tive method. Dating was used to establish a timing of the Weichselian Late Glacial events in the river valley environment. Stable conditions on the floodplain are expressed by the deposition of organic-rich series radiocarbon dated at 12 900-12 600 cal BP and 11 600-10 770 cal BP. Samples for OSL dating were collected from the mineral material deposited during the intensification of flood events during the Weichselian decline. The results obtained for the alluvia range from 12.78 ± 0.62 ka b2k to 14.33 ± 0.74 ka b2k. Sedimentological criteria allowed to distinguish between particular flood events. Overestimation of OSL ages is probably a result of rapidity of environmental changes in that time.

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Palynological reconstruction of environmental changes in coastal wetlands of the Florida Everglades since the mid-Holocene

Quaternary Research ◽

10.1016/j.yqres.2015.03.005 ◽

2015 ◽

Vol 83 (3) ◽

pp. 449-458 ◽

Cited By ~ 16

Author(s):

Qiang Yao ◽

Kam-biu Liu ◽

William J. Platt ◽

Victor H. Rivera-Monroy

Keyword(s):

Coastal Wetlands ◽

Mangrove Forest ◽

Environmental Changes ◽

River Estuary ◽

Florida Everglades ◽

Loss On Ignition ◽

Proxy Record ◽

Peat Deposits ◽

Increasing Precipitation ◽

Mangrove Communities

Palynological, loss-on-ignition, and X-ray fluorescence data from a 5.25 m sediment core from a mangrove forest at the mouth of the Shark River Estuary in the southwestern Everglades National Park, Florida were used to reconstruct changes occurring in coastal wetlands since the mid-Holocene. This multi-proxy record contains the longest paleoecological history to date in the southwestern Everglades. The Shark River Estuary basin was formed ~ 5700 cal yr BP in response to increasing precipitation. Initial wetlands were frequently-burned short-hydroperiod prairies, which transitioned into long-hydroperiod prairies with sloughs in which peat deposits began to accumulate continuously about 5250 cal yr BP. Our data suggest that mangrove communities started to appear after ~ 3800 cal yr BP; declines in the abundance of charcoal suggested gradual replacement of fire-dominated wetlands by mangrove forest over the following 2650 yr. By ~ 1150 cal yr BP, a dense Rhizophora mangle dominated mangrove forest had formed at the mouth of the Shark River. The mangrove-dominated coastal ecosystem here was established at least 2000 yr later than has been previously estimated.

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Factors influencing temporal changes in chemical composition of biogenic deposits in the middle Tążyna River Valley (Kuyavian Lakeland, central Poland)

Geologos ◽

10.1515/logos-2016-0013 ◽

2016 ◽

Vol 22 (2) ◽

pp. 121-136

Author(s):

Daniel Okupny ◽

Seweryn Rzepecki ◽

Ryszard Krzysztof Borówka ◽

Jacek Forysiak ◽

Juliusz Twardy ◽

...

Keyword(s):

Chemical Composition ◽

Environmental Changes ◽

Saline Water ◽

Anthropogenic Activities ◽

Principal Component ◽

Archaeological Site ◽

Central Poland ◽

Geochemical Properties ◽

Geochemical Elements ◽

Micro Elements

Abstract The present paper discusses the influence of geochemical properties on biogenic deposits in the Wilkostowo mire near Toruń, central Poland. The analysed core has allowed the documentation of environmental changes between the older part of the Atlantic Period and the present day (probably interrupted at the turn of the Meso- and Neoholocene). In order to reconstruct the main stages in the sedimentation of biogenic deposits, we have used stratigraphic variability of selected litho-geochemical elements (organic matter, calcium carbonate, biogenic and terrigenous silica, macro- and micro-elements: Na, K, Mg, Ca, Fe, Mn, Cu, Zn, Pb, Cr and Ni). The main litho-geochemical component is CaCO3; its content ranges from 4.1 per cent to 92 per cent. The variability of CaCO3 content reflects mainly changes in hydrological and geomorphological conditions within the catchment area. The effects of prehistoric anthropogenic activities in the catchment of the River Tążyna, e.g., the use of saline water for economic purposes, are recorded in a change from calcareous gyttja into detritus-calcareous gyttja sedimentation and an increased content of lithophilous elements (Na, K, Mg and Ni) in the sediments. Principal component analysis (PCA) has enabled the distinction the most important factors that affected the chemical composition of sediments at the Wilkostowo site, i.e., mechanical and chemical denudation processes in the catchment, changes in redox conditions, bioaccumulation of selected elements and human activity. Sediments of the Wilkostowo mire are located in the direct vicinity of an archaeological site, where traces of intensive settlement dating back to the Neolithic have been documented. The settlement phase is recorded both in lithology and geochemical properties of biogenic deposits which fill the reservoir formed at the bottom of the Parchania Canal Valley.

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Holocene history of landscape development in the catchment of Lake Skogstjern, southeastern Norway, based on a high-resolution multi-proxy record

The Holocene ◽

10.1177/0959683617715691 ◽

2017 ◽

Vol 27 (12) ◽

pp. 1928-1947 ◽

Cited By ~ 5

Author(s):

Magdalena Wieckowska-Lüth ◽

Wiebke Kirleis ◽

Walter Doerfler

Keyword(s):

High Resolution ◽

Environmental Changes ◽

Animal Husbandry ◽

Small Scale ◽

Minor Role ◽

Landscape Development ◽

Proxy Record ◽

Crop Cultivation ◽

The Holocene ◽

Erosion Rates

A high-resolution multi-proxy record from sediments of a small-sized lake situated in Telemark, southeastern Norway, was used to reconstruct the local landscape development of the past c. 10,500 years. Our data demonstrate that changes in vegetation composition and structure in the first two-thirds of the Holocene are principally attributable to climatic changes and high erosion rates, as deduced from geochemical and physical (loss-on-ignition) proxy analyses. The highest signals of erosional inputs to the lake (c. 8030–5760 cal. BP) can be correlated with the first part of the Holocene Thermal Maximum. Nevertheless, evidence from pollen, non-pollen palynomorphs and microscopic charcoal analyses indicates the presence of nutrient-rich and disturbed environments already during the middle Mesolithic (c. 10,050–9400 cal. BP). It also shows traces of animal husbandry (c. 5580 cal. BP) and small-scale cereal cultivation (c. 5520 cal. BP) in the early Neolithic. In subsequent periods, human impact remains at a relatively low level and does not generate significant palaeo-environmental changes. Not until the second half of the Bronze Age (c. 2840 cal. BP) is some intensification in animal husbandry recorded, whereas crop cultivation continues to play a minor role in the second millennium BP. The establishment of a full farming economy took place during the Roman Iron Age (c. 1790 cal. BP), characterised by extensive forest clearance and local fires, crop cultivation in permanent fields and the presence of open pastures. This establishment is associated with advanced soil degeneration and increased erosion rates.

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Records on Anthropogenic Environmental Changes in Small River Valleys in the Vicinity of Łowicz (Central Poland): Their Significance for the Reconstruction of Late Holocene Settlement Tendencies

Bulletin of Geography Physical Geography Series ◽

10.2478/bgeo-2011-0001 ◽

2011 ◽

Vol 4 (1) ◽

pp. 7-20

Author(s):

Jacek Forysiak ◽

Milena Obremska ◽

Juliusz Twardy

Keyword(s):

Human Activity ◽

Late Holocene ◽

Environmental Changes ◽

River Valley ◽

Small River ◽

Central Poland ◽

Gradual Introduction ◽

Organic Deposits ◽

River Valleys

Abstract Based on palaeobotanical analyses of organic deposits, as well as geomorphological and geological studies at four sites in various geomorphological locations in relation to tributaries of the Bzura River, the presence of traces of human activity, its intensiveness, and classification to cultural levels were analysed. A pattern of later and later settlement in areas remote from the axis of the Warsaw-Berlin streamway was observed along with the gradual introduction of settlement from river valley bottoms to watershed zones.

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Hexactinellid sponge assemblages across the Campanian– Maastrichtian boundary in the Middle Vistula River section, central Poland

Acta Geologica Polonica ◽

10.2478/v10263-012-0030-y ◽

2012 ◽

Vol 62 (4) ◽

pp. 561-580 ◽

Cited By ~ 11

Author(s):

Ewa Świerczewska-Gładysz

Keyword(s):

Sea Level ◽

Environmental Changes ◽

River Valley ◽

River Section ◽

Sea Level Changes ◽

Central Poland ◽

Vistula River ◽

Hexactinellid Sponge ◽

Hexactinellid Sponges ◽

Upper Campanian

ABSTRACTŚwierczewska-Gładysz, E. 2012. Hexactinellid sponge assemblages across the Campanian-Maastrichtian boundary in the Middle Vistula River section, central Poland. Acta Geologica Polonica, 62 (4), 561-580. Warszawa.The sponge fauna from the Upper Campanian-lowermost Maastrichtian succession of the Middle Vistula River valley (central Poland) is represented mainly by dictyid hexactinellid sponges (Hexactinosida and Lychniscosida). Their greatest abundance and taxonomic variability is noted in the “Inoceramus” inkermanensis Zone (Upper Campanian), and they are less diverse in the overlying (Upper Campanian) Trochoceramus costaecus Zone and lower “Inoceramus” redbirdensis Zone. In the upper “Inoceramus” redbirdensis Zone (basal Maastrichtian in the sense of the Tercis rather than the Boreal definition) they are extremely rare. With the beginning of the Maastrichtian the number of dictyid sponges gradually increases.The observed changes in the abundance and taxonomic variability of the dictyid sponges indicate environmental changes in the latest Campanian-earliest Maastrichtian sea in the area. It seems that changes in basin bathymetry, confined to eustatic sea-level changes in the latest Campanian and early Maastrichtian, were the most important factor. Progressive shallowing of the basin in the latest Campanian drastically restricted the development of dictyids. In the peak regression, the sea level could have fallen to only several tens of metres. The gradual recovery of the sponge assemblages correlates with subsequent deepening of the basin with the start of the Maastrichtian

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The Late Pleistocene clastic deposits in the Romito Cave, southern Italy: a proxy record of environmental changes and human presence

Journal of Quaternary Science ◽

10.1002/jqs.1236 ◽

2008 ◽

Vol 24 (4) ◽

pp. 383-398 ◽

Cited By ~ 17

Author(s):

Massimiliano Ghinassi ◽

Andrè C. Colonese ◽

Zelia Di Giuseppe ◽

Lisa Govoni ◽

Domenico Lo Vetro ◽

...

Keyword(s):

Late Pleistocene ◽

Southern Italy ◽

Environmental Changes ◽

Proxy Record ◽

Human Presence

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Lake Ohrid, Albania, provides an exceptional multi-proxy record of environmental changes during the last glacial–interglacial cycle

Palaeogeography Palaeoclimatology Palaeoecology ◽

10.1016/j.palaeo.2010.01.016 ◽

2010 ◽

Vol 287 (1-4) ◽

pp. 116-127 ◽

Cited By ~ 74

Author(s):

A.-M. Lézine ◽

U. von Grafenstein ◽

N. Andersen ◽

S. Belmecheri ◽

A. Bordon ◽

...

Keyword(s):

Environmental Changes ◽

Lake Ohrid ◽

Proxy Record ◽

Last Glacial ◽

The Last Glacial

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Environmental changes of the stadial/interstadial type during the Late Saalian (MIS-6) – Multi-proxy record at the Wola Starogrodzka site, central Poland

Environmental changes during Mesolithic-Neolithic transition in Kuyavia Lakeland, Central Poland

Timing of environmental changes of the Weichselian decline (18.0–11.5 ka cal BP) using frequency distribution of 14C dates for the Łódź region, Central Poland

Optical dating and sedimentary record from the terrace depositional profile of the Warta River (Central Poland)

Palynological reconstruction of environmental changes in coastal wetlands of the Florida Everglades since the mid-Holocene

Factors influencing temporal changes in chemical composition of biogenic deposits in the middle Tążyna River Valley (Kuyavian Lakeland, central Poland)

Holocene history of landscape development in the catchment of Lake Skogstjern, southeastern Norway, based on a high-resolution multi-proxy record

Records on Anthropogenic Environmental Changes in Small River Valleys in the Vicinity of Łowicz (Central Poland): Their Significance for the Reconstruction of Late Holocene Settlement Tendencies

Hexactinellid sponge assemblages across the Campanian– Maastrichtian boundary in the Middle Vistula River section, central Poland

The Late Pleistocene clastic deposits in the Romito Cave, southern Italy: a proxy record of environmental changes and human presence

Lake Ohrid, Albania, provides an exceptional multi-proxy record of environmental changes during the last glacial–interglacial cycle

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