Geochemistry of Daihai Lake sediments, Inner Mongolia, north China: Implications for provenance, sedimentary sorting, and catchment weathering

Jin, Zhangdong; Li, Fuchun; Cao, Junji; Wang, Sumin; Yu, Jimin

doi:10.1016/j.geomorph.2006.02.006

Cited by 173 publications

(90 citation statements)

References 53 publications

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“…Table 1 also illustrates that TOC had a negative relationship with sand content and d(0.5). Usually, in a relatively close hydraulic equivalence, coarser sediment particles indicated a stronger water energy environment (Jin et al, 2006;Molinaroli et al, 2009). These analyses indicated that the relatively lower TOC values in the mid-west section of Bosten Lake were attributable to both the lower POC in the water column and higher kinetic energy level.…”

Section: Discussionmentioning

confidence: 99%

Spatial distribution and sources of organic carbon in the surface sediment of Bosten Lake, China

Wang

Zhang

et al. 2015

Biogeosciences

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Abstract. Lake sediment is an important carbon reservoir. However, little is known on the dynamics and sources of sediment organic carbon in Bosten Lake. We collected 13 surface (0-2 cm) sediment samples in Bosten Lake and analyzed total organic carbon (TOC), total nitrogen (TN), stable carbon isotopic composition in TOC (δ 13 C org ), and grain size. We found a large spatial variability in TOC content (1.8-4.4 %) and δ 13 C org value (−26.77 to −23.98 ‰). Using a three-end-member mixing model with measured TOC : TN ratio and δ 13 C org , we estimated that 54-90 % of TOC was from autochthonous sources. Higher TOC content (> 3.7 %) was found in the east and central-north sections and near the mouth of the Kaidu River, which was attributable to allochthonous, autochthonous plus allochthonous, and autochthonous sources, respectively. The lowest TOC content was found in the mid-west section, which might be a result of high kinetic energy levels. Our study indicated that the spatial distribution of sediment TOC in the Bosten Lake was influenced by multiple and complex processes.

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Section: Discussionmentioning

confidence: 99%

Spatial distribution and sources of organic carbon in the surface sediment of Bosten Lake, China

Wang

Zhang

et al. 2015

Biogeosciences

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“…High (La/Yb)N (8.2-17.2) and (Ce/Yb)N (5.1-29.4) ratios emphasize the obvious fractionation between LREEs and HREEs. Uniform REE patterns imply similar REE concentrations of source lithologies and/or no strong weathering effect on REE distribution (McLennan, 1989;Jin et al, 2006). The chondritenormalized REEs of UCC and PAAS (Post-Archaean Australia Shale; Taylor and McLennan, 1985) are plotted together with the average chondrite-normalized REE concentrations of the fine-grained sediments in the Huadian Basin (Fig.…”

Section: Rare-earth Elementsmentioning

confidence: 99%

“…The inorganic geochemistry of lacustrine fine-grained sediments, including oil shale has been used effectively to evaluate depositional environments, paleoclimate and weathering conditions (Chamley 1980;Last and Smol, 2001;Charles et al, 2008;Chen et al, 2003;Jin et al, 2006;Golderg and Humayun, 2010;Laird et al, 2003;Meng et al, 2012;. Because of different geochemical behaviors during weathering, sediment transport and deposition, some major, trace and rare earth elements (REEs) are useful indicators of sedimentary provenance and sedimentary processes.…”

Section: Introductionmentioning

confidence: 99%

“…For example, an increase in the degree of weathering is accompanied by a decrease in concentrations of CaO, K O, Na O and an enrich- tive to redox conditions. REEs, Th and Sc as well as other elements (U, Rb) are least fractionated by various sedimentary process (Taylor and McLennan, 1985;McLennan, 1989McLennan, , 1993McLennan, , 2001Johnsson, 1993;Das and Haake 2003;Weltje and von Eynatten, 2004;Jin et al, 2006;Li et al, 2017). The Huadian Basin, located in northeastern China (Fig.1a), is filled by Eocene lacustrine sediments (Meng et al, , 2012bSun et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

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Mineralogy and geochemistry of fine-grained clastic rocks in the Eocene Huadian Basin (NE China): Implications for sediment provenance, paleoclimate and depositional environment

Meng¹,

Sachsenhofer²,

Liu³

et al. 2018

AJES

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The Huadian Basin is a small fault-controlled basin in northeast China. It is filled by the Eocene Huadian Formation comprising thick lacustrine oil shale-and coal-bearing sediments. Oil shale, mudstone and carbonaceous shale samples have been collected to determine their mineralogical and geochemical (major, trace and rare earth elements) characteristics. These data are used to evaluate sediment provenance as well as paleoclimate and depositional environment. The fine-grained sediments in the Huadian Formation are derived from felsic volcanic rocks and granites, mixed with minor amounts of mafic and sedimentary rocks. Geochemical proxies confirm sediment recycling in the source region. Clay mineralogy and indices of chemical alteration suggest that a subtropical warm and humid climate prevailed during deposition of the fine-grained sediments. The data also suggest climatic changes during deposition of the Huadian Formation, from a stable warm and humid climate causing intermediate chemical weathering (Pyrite Member), to a seasonal dry-wet climate (Oil Shale Member), to a stable warmer and more humid climate causing strong chemical weathering (Carbonaceous Shale Member). Based on inorganic proxies, the fine-grained sediments in the Huadian Formation have been deposited in an anoxic fresh-water environment. Only the sediments of the Oil Shale Member reflect fluctuating freshwater and brackish conditions. The Eocene climatic change controlled lake level variations and water chemistry. A brackish and strictly anoxic environment together with a warm and humid climate was beneficial for the formation of high quality oil shale, whereas fresh-water conditions and warm and more humid climate favored peat accumulation.______________

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“…Ennek egyik bizonytéka, hogy az Al, Si, K, Fe, Cu eloszlásával minden szelvényben tökéletesen megegyezik az agyagásványok eloszlása, ami Jin et al (2006), és Das et al (2006) szerint is a recens agyagásvány-képzıdés bizonyítéka. További érv az agyagásványok autigén kialakulási folyamataira, hogy a röntgen-diffraktogramok minden esetben kevert, illetve rossz kristályosodással rendelkezı agyagásvány csoportokat mutattak ki, ami arra enged következtetni, hogy a lúgos körülmények között az agyagásványok képzıdésekor inkáb rácsfoszlányok keletkeznek.…”

Section: A Szerves Anyag Felhalmozódásának Körülményeiunclassified

A szegedi Fehér-tó szikes üledékeinek környezetgeokémiai tulajdonságai

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Geochemistry of Daihai Lake sediments, Inner Mongolia, north China: Implications for provenance, sedimentary sorting, and catchment weathering

Cited by 173 publications

References 53 publications

Spatial distribution and sources of organic carbon in the surface sediment of Bosten Lake, China

Spatial distribution and sources of organic carbon in the surface sediment of Bosten Lake, China

Mineralogy and geochemistry of fine-grained clastic rocks in the Eocene Huadian Basin (NE China): Implications for sediment provenance, paleoclimate and depositional environment

A szegedi Fehér-tó szikes üledékeinek környezetgeokémiai tulajdonságai

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