Biogeochemistry of manganese in ferruginous Lake Matano, Indonesia

Jones, CarriAyne; Crowe, Sean A.; Sturm, Arne; Leslie, Karla; MacLean, Leann L.; Katsev, Sergei; Henny, Cynthia; Fowle, David A.; Canfield, Donald E.

doi:10.5194/bg-8-2977-2011

Cited by 49 publications

(44 citation statements)

References 58 publications

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“…They consisted of H + -birnessite (MnO 2 ) in the oxic layer that was reduced to (Ca, Mn)CO 3 and (Fe, Mn) 3 (PO 4 ) 2¨8 H 2 O particles in the anoxic layer (in the sediment). In contrast, rapid Mn reduction in the water column of the meromictic and ferruginous (but phosphate-poor) Lake Matano precluded the deposition of Mn-bearing minerals to the sediments [60]. It would be of interest to investigate more deeply the speciation of Mn in the Mn-oxides and phosphates formed in the Lake Pavin water column, as well as their fate in the sediment, and to explore the microbial diversity potentially involved in the Mn biogeochemical cycle in this lake.…”

Section: Transition From Mn-to Fe-mineral Formation (50-60-m Depth)mentioning

confidence: 99%

Mineralogical Diversity in Lake Pavin: Connections with Water Column Chemistry and Biomineralization Processes

et al. 2016

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Abstract:As biominerals are good tracers of microbial interactions with the environment, they may provide signatures of microbial evolution and paleoenvironmental conditions. Since modern analogues of past environments help with defining proxies and biosignatures, we explored microbe mineral interactions in the water column of a maar lake, located in France: Lake Pavin. This lake is considered as a potential Precambrian ocean analogue, as it is ferruginous and meromictic, i.e., stratified with a superficial O 2 -rich layer (mixolimnion) and a deeper permanently anoxic layer (monimolimnion). We combined bulk chemical analyses of dissolved and particulate matter in combination with electron microscopy analyses of the particulate matter at different depths along the water column. The mineralogy changed along with water chemistry, and most of the minerals were intimately associated with microorganisms. Evolution of the redox conditions with depth leads to the successive precipitation of silica and carbonates, Mn-bearing, Fe-bearing and S-containing phases, with a predominance of phosphates in the monimolimnion. This scheme parallels the currently-assessed changes of microbial diversity with depth. The present results corroborate previous studies that suggested a strong influence of microbial activity on mineralogical diversity through extracellular and intracellular biomineralization. This paper reports detailed data on mineralogical profiles of the water column and encourages extended investigation of these processes.

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Section: Transition From Mn-to Fe-mineral Formation (50-60-m Depth)mentioning

confidence: 99%

Mineralogical Diversity in Lake Pavin: Connections with Water Column Chemistry and Biomineralization Processes

et al. 2016

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“…3, 5, 6). Since Mn reacts quickly to changing redox-conditions if microbially mediated (Tebo et al 2004;Jones et al 2011), the termination of the linear dissolved Mn 2? -gradients closely above the oxic/anoxic interface in both lakes corroborates an O 2 dependency of in situ Mn-oxidation (Schippers et al 2005;Clement et al 2009).…”

Section: Redox Gradients At the Low O 2 Boundarymentioning

confidence: 99%

Redox gradients at the low oxygen boundary of lakes

et al. 2014

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The distribution of oxygen (O 2 ) at the oxic/ anoxic interface in the water column of two Swiss lakes was measured with sub-micromolar sensitivity, high precision, and high spatial resolution. The O 2 distribution was found to be highly variable and it is shown that N-cycling and the redox gradients of Mn, Fe and CH 4 are controlled by O 2 distributions down to the nanomolar concentration range. The profiles reveal that apparent gaps between the oxic zone and the sites of CH 4 and Mn oxidation are bridged by zones with 0.01-1 lmol L -1 O 2 concentrations and thus CH 4 and Mn oxidation clearly occur at oxic conditions. Directly below the steep oxycline of Lake Rot a broad low O 2 zone in the depth range of 6-7.5 m was now detectable. The O 2 increase during daylight in this zone was comparable to the O 2 flux along the oxycline. Here photosynthesis could be responsible for a substantial part of the chemotrophic oxidation processes. An even broader zone (0.8-3.8 m) with sub-micromolar O 2 and evidence for methanotrophic and lithotrophic activities found at 160 m depth in the deep, dark hypolimnion of Lake Zug was maintained by transport, reaction-and mixing processes. The submicromolar zones could not have been resolved with traditional CTD-profiles. Their existence expands the oxic zone downwards and implies that substantial parts of ''suboxic zones'' characterized by the absence of both O 2 and H 2 S may actually belong to the realm of oxic processes if more sensitive measurement techniques are used for their characterization.

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“…This is supported by measurements of organic carbon burial rates in Lake Matano, an interesting Archean analog site, where burial rates are on the order of 22 % of NPP . Lake Matano is a permanently stratified lake in Indonesia and is considered one of the best extant Archean ocean analog systems due to its photic zone anoxia, high dissolved iron content, and low sulfur content (Crowe et al 2008Jones et al 2011). The absence of aerobic respiration before the rise of oxygen likely required alternative remineralization processes to play larger roles in the carbon cycle, most likely dominated by methanogenesis (Hayes 1994).…”

Section: Introductionmentioning

confidence: 99%

Timescales of Oxygenation Following the Evolution of Oxygenic Photosynthesis

Ward

Kirschvink

Fischer

2015

Orig Life Evol Biosph

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Among the most important bioenergetic innovations in the history of life was the invention of oxygenic photosynthesis-autotrophic growth by splitting water with sunlight-by Cyanobacteria. It is widely accepted that the invention of oxygenic photosynthesis ultimately resulted in the rise of oxygen by ca. 2.35 Gya, but it is debated whether this occurred more or less immediately as a proximal result of the evolution of oxygenic Cyanobacteria or whether they originated several hundred million to more than one billion years earlier in Earth history. The latter hypothesis involves a prolonged period during which oxygen production rates were insufficient to oxidize the atmosphere, potentially due to redox buffering by reduced species such as higher concentrations of ferrous iron in seawater. To examine the characteristic timescales for environmental oxygenation following the evolution of oxygenic photosynthesis, we applied a simple mathematical approach that captures many of the salient features of the major biogeochemical fluxes and reservoirs present in Archean and early Paleoproterozoic surface environments. Calculations illustrate that oxygenation would have overwhelmed redox buffers within ~100 kyr following the emergence of oxygenic photosynthesis, a geologically short amount of time unless rates of primary production were far lower than commonly expected. Fundamentally, this result arises because of the multiscale nature of the carbon and oxygen cycles: rates of gross primary production are orders of magnitude too fast for oxygen to be masked by Earth's geological buffers, and can only be effectively matched by respiration at non-negligible O2 concentrations. These results suggest that oxygenic photosynthesis arose shortly before the rise of oxygen, not hundreds of millions of years before it.

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Biogeochemistry of manganese in ferruginous Lake Matano, Indonesia

Cited by 49 publications

References 58 publications

Mineralogical Diversity in Lake Pavin: Connections with Water Column Chemistry and Biomineralization Processes

Mineralogical Diversity in Lake Pavin: Connections with Water Column Chemistry and Biomineralization Processes

Redox gradients at the low oxygen boundary of lakes

Timescales of Oxygenation Following the Evolution of Oxygenic Photosynthesis

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