Neogene diatoms as the important source of petroleum in Japan

Aoyagi, Koichi; Omokawa, Mamoru

doi:10.1016/0920-4105(92)90022-s

Cited by 21 publications

(14 citation statements)

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“…Periodic variations in biomass dry weight and lipid production, however, were irregular with no distinct seasonal patterns. Similar results were reported for algal growth under natural environmental conditions ( Lebeau and Robert, 2003 , Lombardi and Wangersky, 1995 , Hu et al, 2008 , Thomas et al, 1983 , Van Gerpen et al, 2004 , Felizardo et al, 2006 , Demirbas, 2009 , Chisti, 2007 , Aoyagi and Neogene, 1992 , Holba et al, 1998 , Hu et al, 2006 , Ramachandra et al, 2009 , Abdel-Hamid et al, 2013 , Starr, 1978 , Cox, 1962 , Horowitz, 1975 , D, 2638 , D, 1310 , Christie and Christie, 1993 , Vicente et al, 2004 , Haas et al, 2009 , Chongkhong et al, 2007 , Goff et al, 2004 , Molnar-Perl and Pinter-Szakacs, 1986 , Sharma and Singh, 2009 , Griffiths and Harrison, 2009 , Sheehan et al, 1998 , Basha and Jebaraj, 2009 , Knothe, 2005 , Sadasivam et al, 1996 , Matsumoto et al, 2017 )and for lipid production by outdoor cultures of microalgae ( Starr, 1978 , Cox, 1962 , Horowitz, 1975 , D, 2638 , D, 1310 , Christie and Christie, 1993 , Vicente et al, 2004 , Haas et al, 2009 , Chongkhong et al, 2007 , Goff et al, 2004 , Molnar-Perl and Pinter-Szakacs, 1986 , Sharma and Singh, 2009 , Griffiths and Harrison, 2009 , Sheehan et al, 1998 , Basha and Jebaraj, 2009 , Knothe, 2005 , Sadasivam et al, 1996 , Matsumoto et al, 2017 ).…”

Section: Discussionsupporting

confidence: 84%

“…Diatoms may contribute to fossil crude oil ( Aoyagi and Neogene, 1992 ), as evidenced by the wide distribution of the diatom biomarker 24-norcholestane in many crude oil basins worldwide ( Holba et al, 1998 , Hu et al, 2006 ). These findings strongly suggest that living diatoms may contribute, at least in part, to the design of a sustainable source of oil ( Ramachandra et al, 2009 ).…”

Section: Introductionmentioning

confidence: 99%

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Long-term monitoring of the biomass and production of lipids by Nitzschia palea for biodiesel production

Touliabah

Abdelhamid

Al-Mutairi

2020

Saudi Journal of Biological Sciences

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Pennate diatom Nitzschia palea can be cultured in outdoor vertical-bed photobioreactors to produce biodiesel. To assess the production of biomass and lipids, non-axenic cultures of Nitzschia palea were grown outdoors, and the growth of these cultures was measured biweekly. During the annual cycle of algal culture, the culture temperature ranged from 17.3 °C to 33.5 °C, the dry weight biomass ranged from 0.11 g l −1 to 0.25 g l −1 , light energy] ranged from 1.94 Wm −2 to 3.9 Wm −2 and intracellular lipid content ranged from 7.1% to 11.4% of biomass weight after drying at 60 °C. Gas chromatography/mass spectroscopy (GC/MS) analysis of n-hexane extracts showed that the intracellular lipids were primarily C14:0 myristic acid (9.01%), C15:0 pentadecyclic acid (8.26%) and two types of C16:0, palmitic acid (41.13%) and palmitoleic acid (29.25%). Gel permeation analysis showed that carboxylic acids comprised 28.9% of lipids, 16.3% of monoglycerides, 27.3% of diglycerides and 24.3% of triglycerides. Alcoholysis of lipids resulted in the conversion of about 93.9% of fatty acids to equivalent fatty acid methyl esters (FAME) or biodiesel, which, on basis of wt%, consisted primarily of C15:0 methyl myristate (8.3%), C16:0 methyl pentadecanoate] (7.2%), C17:1methyl palmitoleate (28.7%) and methyl palimtate](39.8%).

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Section: Discussionsupporting

confidence: 84%

Section: Introductionmentioning

confidence: 99%

Long-term monitoring of the biomass and production of lipids by Nitzschia palea for biodiesel production

Touliabah

Abdelhamid

Al-Mutairi

2020

Saudi Journal of Biological Sciences

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“…Since diatom species distributions are largely controlled by environmental variables (light, moisture conditions, temperature, current velocity, salinity, pH, oxygen, inorganic nutrients) and anthropogenic factors (e.g., organic pollution sources, acidification and eutrophication), 13,14 they have become a standard tool in geology, archaeology, and water quality research (e.g., Refs 15 and 16). Diatoms have been used extensively in a wide range of applications as bioindicators of water quality, 17 as biostratigraphical markers in marine deposits, 18,19 as stratigraphic indicators for mineral and petroleum exploration, [20][21][22][23][24] or as indicators of climate change (Box 1). [25][26][27][28] But while diatoms have been continued to be used in across the environmental sciences, their use in hydrology has been limited.…”

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confidence: 99%

Terrestrial diatoms as tracers in catchment hydrology: a review

et al. 2017

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Diatoms are remarkable organisms. They are present in almost all habitats containing water (e.g., lakes, streams, soils, bark) and rank among the most common algal groups in both freshwaters and marine ecosystems. The ubiquitous character of aquatic diatoms has triggered countless applications as environmental tracers for studies in water quality, paleoclimate reconstruction and sediment tracing. However, diatoms also occur in the terrestrial environment. It is this plethora of diatom life-forms that has recently triggered interest in their use as tracers of hydrological processes. The use of diatoms in catchment hydrology has been very limited. Part of the reason is that until recently, the taxonomy and ecology of terrestrial diatom assemblages were largely unknown. However, in the past decade, much work has been done to quantify terrestrial diatom reservoir size, dynamics, and potential depletion following precipitation events. Therefore, such terrestrial diatoms now hold promise for use in catchment hydrology-for tracing runoff flow sources and pathways across a wide range of spatial scales. Here we review the literature on terrestrial diatoms and describe the various sampling protocols that have been designed and tested for specific applications in hydrological processes research. We review and summarize the work on terrestrial diatom reservoir characterization, transport mechanisms and pathways to show how such diatom-based tracer work might be possible at the catchment scale for rainfall-runoff studies. Finally, we present a vision for future work that might take advantage of terrestrial diatoms in catchment hydrology and discuss the main challenges going forward. © 2017 The Authors. WIREs Water published by Wiley Periodicals, Inc. How to cite this article:WIREs Water 2017Water , 4:e1241. doi: 10.1002Water /wat2.1241 INTRODUCTION D iatoms (Bacillariophyta) are present in almost all habitats containing water (e.g., lakes, streams, soils, litter, bark). They count among the most common algal groups in both freshwaters and marine ecosystems. 1 Despite their microscopic size (10-200 microns), 2 diatoms generate an impressive amount of carbon through photosynthesis: almost as much as all rainforests combined. 3 Identification of diatoms date back to the early 1700s as noted by Round et al. 1 Decades later, Otto Friedrich Müller published the first description of a diatom in 1783 (Vibrio paxillifer ≡ Bacillaria paradoxa). Since then, This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes. more than 64,000 diatom species have been described-and new species are added to that list almost daily with the number of extant species extrapolated to ca 100,000. 4,5 The identification of diatoms (from the Greek 'diatomos' or 'cut in half') commonly relies on the highly differentiated cell wall (or frustule) that is mostly co...

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“…In this area, Middle-Late Miocene siliceous sedimentary rocks are considered the most productive horizons for hydrocarbon generation and have been studied by various geological investigations (Aoyagi & Omokawa, 1992;Kimura, Shikazono, Kashiwagi, & Nohara, 2004;Ujiié, 1995). Additionally, other studies performed on the outcropping Middle-Late Miocene formations in Akita Prefecture (Kimura et al, 2004;Tada, 1991;Waseda, Tsuji, Kajiwara, & Nishido, 1995;Watanabe, Yamamoto, & Imai, 1994;Yamamoto, 1994) and in Aomori Prefecture (Aoyagi & Omokawa, 1992;Jingu & Ujiié, 1990;Tada, Watanabe, & Iijima, 1986;Ujiié, 1995) have integrated sedimentological data with geochemical data to assess the hydrocarbon potential of these formations and to understand the factors that determined the accumulation and preservation of organic matter in sediments; these assessments have also focused on the Japan Sea's evolution. However, in some areas of Akita and Aomori Prefectures, these studies have not yet been performed and minimal subsurface data is available.…”

Section: Introductionmentioning

confidence: 99%

Sedimentary and geochemical characterization of Middle–Late Miocene formations in the Neogene Tsugaru Basin, Japan by means of DTH27‐1 well sediment analysis

2020

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Middle-Late Miocene age siliceous formations outcropping along the northwestern side of Honshu Island are considered prospective source rocks for hydrocarbons. An analysis of geophysical, sedimentological, and geochemical properties is essential to evaluate the formations' source potential, and to understand the factors that determined the accumulation and preservation of organic matter. This study investigates the Middle-Late Miocene geological record of the Tsugaru back-arc basin, located in the western part of Aomori prefecture, through an analysis of a 200 m long portion of a core from the DTH27-1 well; this core is composed of the diatomaceous siltstones of the Akaishi Formation and the siliceous mudstones of the Odoji Formation. Sedimentological and geophysical characterization showed that the Akaishi Formation's diatomaceous siltstones are mostly massive and bioturbated, have low magnetic susceptibility, and demonstrate moderate natural radioactivity. Although the Odoji Formation's siliceous mudstones are massive, they have exceedingly low magnetic susceptibility and high natural radioactivity. Geochemical data from a Rock-Eval Pyrolysis such as total organic carbon and generative potential (S1 + S2) revealed that, in the Tsugaru area, only the Odoji Formation is a likely prospective source rock for hydrocarbons. On the other hand, T max values indicate that both the formations are thermally immature for generating hydrocarbons. The difference between the Akaishi and Odoji Formation in the sedimentological facies, in terms of the degree of bioturbation and the organic carbon content, indicates variations in lithological properties, such as porosity and grain size; moreover, this difference indicates a variation in the paleo-oxygenation of bottom waters, with the transition from oxygen-deficient conditions in the Middle Miocene to the more oxygenated conditions in the Late Miocene. Both the lithological and paleo-environmental factors possibly influenced the organic richness in the two formations.

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Neogene diatoms as the important source of petroleum in Japan

Cited by 21 publications

References 10 publications

Long-term monitoring of the biomass and production of lipids by Nitzschia palea for biodiesel production

Long-term monitoring of the biomass and production of lipids by Nitzschia palea for biodiesel production

Terrestrial diatoms as tracers in catchment hydrology: a review

Sedimentary and geochemical characterization of Middle–Late Miocene formations in the Neogene Tsugaru Basin, Japan by means of DTH27‐1 well sediment analysis

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