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Mineral components in a peat deposit: looking for signs of

2012-11-10  The peat deposit is a compact, undisturbed remnant of a minerotrophic fen underlined by sand sediments. The main feature of the peat is a presence of a continuous, horizontal dark layer, about 5–15 cm thick, rich in charcoal, located in the middle of the peat deposit.

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The inorganic geochemistry of a peat deposit on the

2012-8-15  In contrast, minerotrophic peat deposits can display up to 16-fold increases in Sr within one profile (Weiss et al., 1999, Shotyk, 2002, Monna et al., 2004), a feature clearly absent here. Only Ca, which when present in minerals soluble under acid conditions such as carbonates can show a slight concentration increase with depth, indicates

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Stability and Change in Minerotrophic Peatlands, Sierra

2007-11-30  loss from peat layers. The dried peat decomposes, eliminating the peat layer under the stand in a few decades. The stands eventually die, many in their first century, and mosses reoccupy the area and begin building a new peat deposit, continuing the cycle. Management of pine invasions is not needed for preservation of Sierran fen ecosystems.

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(PDF) Mire and Peat Macros ResearchGate

A range of mire and peat macrofossils which can be found in northwest European peat bog (ombrotrophic) and fen (minerotrophic peatland) deposits are illustrated in an

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The chronology of anthropogenic, atmospheric Pb

Studies of minerotrophic peat profiles from Switzerland showed that Pb had been supplied exclusively from the atmosphere (Shotyk, 2002), despite the inputs of other elements (such as Sr) from

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Plant macrofossil methods and studies: Mire and Peat

TY CHAP. T1 Plant macrofossil methods and studies. T2 Mire and Peat Macros. AU Mauquoy, Dmitri. AU Van Geel, B. PY 2007. Y1 2007. N2 A range of mire and peat macrofossils which can be found in northwest European peat bog (ombrotrophic) and fen (minerotrophic peatland) deposits are illustrated in an extensive series of figures.

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Peat Bog an overview ScienceDirect Topics

The average Ir value reported by Rauch et al. (2004b) was comparable to the 0.070 ng/g level reported in a subsequent study that evaluated Ir concentration in a minerotrophic peat deposit near a historic Pb-Ag mining district in Příbram, Czech Republic (Strnad et al., 2008). This value, which was similar or slightly elevated in absolute

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Holocene elemental, lead isotope and Mires and Peat

2019-1-26  Chróst 2013) minerotrophic peat cores from of Silesia suggested that smelting could have begun between the 9th and 11th centuries AD. However, peat deposit in Żyglin has a triangular shape and was drained during the intertwice, -war period (1918–1939) and in the 1980s. It covers an area of

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Tropical Peat Accumulation in Central Amazonia

2013-3-22  Only one site did not have any organic deposit. The loss-on-ignition (LOI), carbon content and dry bulk density, measured for the four peatland sites, varied from 17.7 to 97.4 %, 11 to 59 %, and 0.0002 to 0.572 g cm−3, respectively. All sites were classified as minerotrophic

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High diversity of tropical peatland ecosystem types in

2017-7-19  [10] At each site, peat thickness was determined with a Russian peat sampler (50 cm × 4 cm × 2 cm [Jowsey, 1965]) at study points located at every 500 m along the transect. At each study point, coring was continued from the sur-face to the depth where an impenetrable minerogenic deposit was encountered. The results for the central core of each

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Stability and Change in Minerotrophic Peatlands, Sierra

2007-11-30  2007-11-30  loss from peat layers. The dried peat decomposes, eliminating the peat layer under the stand in a few decades. The stands eventually die, many in their first century, and mosses reoccupy the area and begin building a new peat deposit, continuing the cycle. Management of pine invasions is not needed for preservation of Sierran fen ecosystems.

get price

(PDF) Mire and Peat Macros ResearchGate

A range of mire and peat macrofossils which can be found in northwest European peat bog (ombrotrophic) and fen (minerotrophic peatland) deposits are illustrated in an extensive series of figures.

get price

Distribution of the Platinum Group Elements in Peat

2008-3-29  Concentrations of platinum group elements (PGE) and Ag were studied in a minerotrophic peat deposit near a historic Pb–Ag mining district (Příbram, Czech Republic). The PGE determinations were performed by quadrupole ICP-MS after NiS fire assay procedure. In the individual peat layers (dated by measurement of 210Pb activity) the PGE concentrations were low and ranged from 0.015 ng g−1

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Mineral components in a peat deposit: looking for signs

2017-8-26  The peat deposit has a thickness between 30 and 120 cm and covers an area of around 2 ha. The peat deposit is a compact, undisturbed remnant of a minerotrophic fen underlined by sand sediments. The main feature of the peat is a presence of a continuous, horizontal dark layer, about Fig. 1 Geological setting and location of the investigated peat

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Plant macrofossil methods and studies: Mire and Peat

TY CHAP. T1 Plant macrofossil methods and studies. T2 Mire and Peat Macros. AU Mauquoy, Dmitri. AU Van Geel, B. PY 2007. Y1 2007. N2 A range of mire and peat macrofossils which can be found in northwest European peat bog (ombrotrophic) and fen (minerotrophic peatland) deposits are illustrated in an extensive series of figures.

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REINTRODUCTION OF FEN PLANT COMMUNITIES ON

2019-6-19  2019-6-19  15TH INTERNATIONAL PEAT CONGRESS 2016 462 Abstract No: A-255 . REINTRODUCTION OF FEN PLANT COMMUNITIES ON MINEROTROPHIC REMNANT SURFACES AFTER PEAT EXTRACTION . Marie-Claire LeBlanc, Line Rochefort and Sandrine Hugron

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The chronology of anthropogenic, atmospheric Pb

Studies of minerotrophic peat profiles from Switzerland showed that Pb had been supplied exclusively from the atmosphere (Shotyk, 2002), despite the inputs of other elements (such as Sr) from

get price

Peat Bog an overview ScienceDirect Topics

The average Ir value reported by Rauch et al. (2004b) was comparable to the 0.070 ng/g level reported in a subsequent study that evaluated Ir concentration in a minerotrophic peat deposit near a historic Pb-Ag mining district in Příbram, Czech Republic (Strnad et al., 2008). This value, which was similar or slightly elevated in absolute

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Natural and anthropogenic enrichments of As, Cu, Pb, Sb

Peat cores were taken from two contrasting Sphagnum bogs in the Jura Mountains of Switzerland. At Etang de la Gruyere (EGr), 6.5 m of peat has accumulated during the past 10,000 years. In the first 100 cm of this profile there are several distinct peaks in ash content, but the values are well within the range for typical ombrotrophic Sphagnum bogs. There is also considerable variation in the

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The use of principle component analyses in characterising

2008-1-15  2008-1-15  The Lynch’s Crater peat deposit in NE-Australia is a sensitive environmental archive located in the tropical Southern Hemisphere. This unique deposit illustrates that local and regional changes had a profound effect on the local Australian ecosystem over the past 55. kyr.. To obtain a proxy of past climate changes, trace and major element geochemistry analyses were applied to a 13 m peat

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SUBFOSSIL ORIBATID MITES IN THE PEAT DEPOSITS OF

2017-12-30  minerotrophic mires. This study aims todetermine the diversity of oribatid mite assemblages in the peat deposits of a eutrophic mire.These data are then used to reconstruct the paleoenvironmental conditions of the peat formation during the Holocene. STUDY AREA The research area is

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Stability and Change in Minerotrophic Peatlands, Sierra

2007-11-30  loss from peat layers. The dried peat decomposes, eliminating the peat layer under the stand in a few decades. The stands eventually die, many in their first century, and mosses reoccupy the area and begin building a new peat deposit, continuing the cycle. Management of pine invasions is not needed for preservation of Sierran fen ecosystems.

get price

(PDF) Mire and Peat Macros ResearchGate

A range of mire and peat macrofossils which can be found in northwest European peat bog (ombrotrophic) and fen (minerotrophic peatland) deposits are illustrated in an extensive series of figures.

get price

Distribution of the Platinum Group Elements in Peat

Concentrations of platinum group elements (PGE) and Ag were studied in a minerotrophic peat deposit near a historic Pb-Ag mining district (Príbram, Czech Republic). The PGE determinations were

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Geochemical and stratigraphic evidence of environmental

2006-10-1  The deposit consists of 1.5 m of ombrotrophic peat underlain by a minerotrophic peat. Within the minerotrophic section, sponge spicules and diatom fragments offer evidence of prolonged flooding of the peat environment resulting in several layers containing (up to 50%) high inorganic material.

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(PDF) The inorganic geochemistry of a peat deposit on the

In contrast, minerotrophic peat deposits can dis- play up to 16-fold increases in Sr within one profile ( Weiss et al., 1999; Shotyk, 2002; Monna et al., 2004 ), a feature

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REINTRODUCTION OF FEN PLANT COMMUNITIES ON

2019-6-19  15TH INTERNATIONAL PEAT CONGRESS 2016 462 Abstract No: A-255 . REINTRODUCTION OF FEN PLANT COMMUNITIES ON MINEROTROPHIC REMNANT SURFACES AFTER PEAT EXTRACTION . Marie-Claire LeBlanc, Line Rochefort and Sandrine Hugron

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(PDF) Rare earth element and Pb isotope variations in a 52

Examination of the trophic status finds the deposit is comprised of minerotrophic peat (Mn) which transitions (Tr) to ombrotrophic peat (Om) in upper layers. The age model (A) dates the record at

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High diversity of tropical peatland ecosystem types in the

[19] Surface peat water pH was lower at the nutrient-poor sites (3.8–3.9) than at the nutrient-rich sites (4.4–6.1), a reflection of the greater exchangeable alkalinity and the smaller amount of organic acids present in the minerotrophic peat [Siegel and Glaser, 1987, Table 1]. Water table of the nutrient-poor sites (3–11 cm) was below

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(QYLURQPHQWDO 6WXGLHV LQ Poland Using Peatlands

2010-12-8  the peat deposit. In the bog located in a heavily polluted industrial region, lead, zinc, and cadmium reached their maximum values of 238–401 mg/l, 165–770 mg/l, and 7–31 mg/l, respectively. Similarly to the results from the Puścizna Rękowiańska, the

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