Change search
Link to record
Permanent link

Direct link
Boman, Anton
Publications (9 of 9) Show all publications
Åström, M. E., Österholm, P., Gustafsson, J. P., Nystrand, M., Peltola, P., Nordmyr, L. & Boman, A. (2012). Attenuation of rare earth elements in a boreal estuary (ed.). Geochimica et Cosmochimica Acta, 96, 105-119
Open this publication in new window or tab >>Attenuation of rare earth elements in a boreal estuary
Show others...
2012 (English)In: Geochimica et Cosmochimica Acta, ISSN 0016-7037, E-ISSN 1872-9533, Vol. 96, p. 105-119Article in journal (Refereed) Published
Abstract [en]

This study focuses on attenuation of rare earth elements (REE) when a boreal creek, acidified and loaded with REE and other metals as a result of wetland drainage, empties into a brackish-water estuary (salinity < 6 ‰). Surface water was collected in a transect from the creek mouth to the outer estuary, and settling (particulate) material in sediment traps moored at selected locations in the estuary. Ultrafiltration, high-resolution ICP-MS and modeling were applied on the waters, and a variety of chemical reagents were used to extract metals from the settling material. Aluminium, Fe and REE transported by the acidic creek were extensively removed in the inner/central estuary where the acidic water was neutralised, whereas Mn was relatively persistent in solution and thus redistributed to particles and deposited further down the estuary. The REE removal was caused by several contemporary mechanisms: co-precipitation with oxyhydroxides (mainly Al but also Fe), complexation with flocculating humic substances and sorption to suspended particles. Down estuary the dissolved REE pool, remaining after removal, was fractionated: the <1kDa pool became depleted in the middle REE and the colloidal (0.45 μm (1kDa) pool depleted in the middle and heavy REE. This fractionation was controlled by the removal process, such that those REE with highest affinity for the settling particles became most depleted in the remaining dissolved pool. Modeling, based on Visual MINTEQ version 3.0 and the Stockholm Humic Model after revision and updating, predicted that the dissolved (<0.45 μm) REE pool in the estuary is bound almost entirely to humic substances. Acid sulphate soils, the source of the REE and other metals in the creek water, are widespread on coastal plains worldwide and therefore the REE attenuation patterns and mechanisms identified in the studied estuary are relevant for recognition of similar geochemical processes and conditions in a variety of coastal locations.

National Category
Geochemistry
Research subject
Applied Geology
Identifiers
urn:nbn:se:ltu:diva-9238 (URN)10.1016/j.gca.2012.08.004 (DOI)000310427200008 ()2-s2.0-84867343859 (Scopus ID)7ce78ef3-31dc-4e3c-b012-26d552bea900 (Local ID)7ce78ef3-31dc-4e3c-b012-26d552bea900 (Archive number)7ce78ef3-31dc-4e3c-b012-26d552bea900 (OAI)
Note
Validerad; 2012; 20120814 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved
Åström, M., Boman, A. & Fröjdö, S. (2011). Fast iron sulfide oxidation in a region of land uplift and artificial drainage (ed.). Paper presented at Annual V.M. Goldschmidt Conference : 14/08/2011 - 19/08/2011. Paper presented at Annual V.M. Goldschmidt Conference : 14/08/2011 - 19/08/2011.
Open this publication in new window or tab >>Fast iron sulfide oxidation in a region of land uplift and artificial drainage
2011 (English)Conference paper, Oral presentation only (Other academic)
National Category
Geochemistry
Research subject
Applied Geology
Identifiers
urn:nbn:se:ltu:diva-28472 (URN)24843904-d230-4292-93f8-7e8265c13497 (Local ID)24843904-d230-4292-93f8-7e8265c13497 (Archive number)24843904-d230-4292-93f8-7e8265c13497 (OAI)
Conference
Annual V.M. Goldschmidt Conference : 14/08/2011 - 19/08/2011
Note
Godkänd; 2011; 20110916 (andbra)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2023-09-06Bibliographically approved
Boman, A., Engström, E., Rodushkin, I., Åström, E. & Öhlander, B. (2010). Fe and Zn isotopic variations in Finnish acid sulfate soils (ed.). Paper presented at Annual V.M. Goldschmidt Conference : 13/06/2010 - 18/06/2010. Geochimica et Cosmochimica Acta, 74(12/ Suppl 1), A102
Open this publication in new window or tab >>Fe and Zn isotopic variations in Finnish acid sulfate soils
Show others...
2010 (English)In: Geochimica et Cosmochimica Acta, ISSN 0016-7037, E-ISSN 1872-9533, Vol. 74, no 12/ Suppl 1, p. A102-Article in journal, Meeting abstract (Other academic) Published
National Category
Geochemistry
Research subject
Applied Geology
Identifiers
urn:nbn:se:ltu:diva-39751 (URN)e9ccd42c-af70-484e-bb3b-a384ae112afe (Local ID)e9ccd42c-af70-484e-bb3b-a384ae112afe (Archive number)e9ccd42c-af70-484e-bb3b-a384ae112afe (OAI)
Conference
Annual V.M. Goldschmidt Conference : 13/06/2010 - 18/06/2010
Note

Godkänd; 2010; 20110124 (andbra)

Available from: 2016-10-03 Created: 2016-10-03 Last updated: 2020-03-27Bibliographically approved
Boman, A., Fröjdö, S., Backlund, K. & Åström, M. E. (2010). Impact of isostatic land uplift and artificial drainage on oxidation of brackish-water sediments rich in metastable iron sulfide (ed.). Geochimica et Cosmochimica Acta, 74(4), 1268-1281
Open this publication in new window or tab >>Impact of isostatic land uplift and artificial drainage on oxidation of brackish-water sediments rich in metastable iron sulfide
2010 (English)In: Geochimica et Cosmochimica Acta, ISSN 0016-7037, E-ISSN 1872-9533, Vol. 74, no 4, p. 1268-1281Article in journal (Refereed) Published
Abstract [en]

This study examines the dynamics of sulfur and trace elements (As, Co, Mo, Ni, Ti and Zn) when brackish-water sediments, unusually rich in metastable iron sulfide (probably a mixture of mackinawite and greigite), are brought into the oxidation zone by postglacial isostatic land uplift and farmland drainage. When subaqueous sediments approach the sea level, metastable iron sulfide is oxidized in the upmost layers and pyrite preserved and even accumulated concomitantly trapping Co, Ni and Zn but not As and Mo. When the land uplift has brought the sediments above sea level and natural drainage thus is initiated, the pyrite is oxidized and Co, Ni and Zn are released and transported down the profile. If this setting remained undisturbed, the slightly oxidized sediment (unripe soil) would become covered by peat and thus protected from further oxidation and metal translocation. Often these sediments are, however, artificially drained resulting in extensive oxidation and fast soil-profile development. The soil is an acid sulfate (AS) soil, characterized by low pH (<4), extensive leaching of metals and an abundance of disseminated brownish Fe(III) precipitates. We suggest that the fast soil development is due to initial oxidation of metastable iron sulfide, followed by pyrite oxidation. Drain bottom sediment, which in terms of chemistry and S-isotopes resembled that of the surfacing sea bottom strata, acted during the sampling period as a sink for metals. The abundant preservation of metastable iron sulfide below the groundwater table, even long periods after uplift above the sea level, is a puzzling feature. We suggest that it is the net result of sulfur starvation, an abundance of Fe(II) and strongly reducing conditions.

National Category
Geochemistry
Identifiers
urn:nbn:se:ltu:diva-13941 (URN)10.1016/j.gca.2009.11.026 (DOI)000273824800006 ()2-s2.0-73449110910 (Scopus ID)d4225320-d8f5-11de-bae5-000ea68e967b (Local ID)d4225320-d8f5-11de-bae5-000ea68e967b (Archive number)d4225320-d8f5-11de-bae5-000ea68e967b (OAI)
Note

Validerad; 2010; 20091124 (antbom)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2022-04-01Bibliographically approved
Boman, A., Engström, E., Rodushkin, I., Åström, M. & Öhlander, B. (2010). Isotopic variations of Fe and Zn in Finnish acid sulfate soils (ed.). In: (Ed.), RJ Gilkes; N Prakongkep (Ed.), Proceedings of the 19th World Congress of Soil Science: Soil Solutions for a Changing World. Paper presented at World Congress of Soil Science : 01/08/2010 - 06/08/2010 (pp. 1-4).
Open this publication in new window or tab >>Isotopic variations of Fe and Zn in Finnish acid sulfate soils
Show others...
2010 (English)In: Proceedings of the 19th World Congress of Soil Science: Soil Solutions for a Changing World / [ed] RJ Gilkes; N Prakongkep, 2010, p. 1-4Conference paper, Published paper (Refereed)
Abstract [en]

The use of a Neptune high-resolution MC-ICP-MS (Thermo Fisher Scientific) in this study has enabled high precision measurements of Fe and Zn isotopic ratios in Finnish acid sulfate soils in one near shore area (Vassor) and one inland area (Rintala).

National Category
Geochemistry
Research subject
Applied Geology
Identifiers
urn:nbn:se:ltu:diva-34513 (URN)8bc73ac0-ac38-11df-a707-000ea68e967b (Local ID)978-0-646-53783-2 (ISBN)8bc73ac0-ac38-11df-a707-000ea68e967b (Archive number)8bc73ac0-ac38-11df-a707-000ea68e967b (OAI)
Conference
World Congress of Soil Science : 01/08/2010 - 06/08/2010
Note
Godkänd; 2010; 20100820 (antbom)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2023-09-06Bibliographically approved
Boman, A., Åström, M. & Fröjdö, S. (2008). Sulfur dynamics in boreal acid sulfate soils rich in metastable iron sulfide: The role of artificial drainage (ed.). Chemical Geology, 255, 68
Open this publication in new window or tab >>Sulfur dynamics in boreal acid sulfate soils rich in metastable iron sulfide: The role of artificial drainage
2008 (English)In: Chemical Geology, ISSN 0009-2541, E-ISSN 1872-6836, Vol. 255, p. 68-Article in journal (Refereed) Published
Identifiers
urn:nbn:se:ltu:diva-4587 (URN)10.1016/j.chemgeo.2008.06.006 (DOI)000260235400007 ()2-s2.0-50449084920 (Scopus ID)28ddbb90-d8f9-11de-bae5-000ea68e967b (Local ID)28ddbb90-d8f9-11de-bae5-000ea68e967b (Archive number)28ddbb90-d8f9-11de-bae5-000ea68e967b (OAI)
Note
Upprättat; 2008; 20091124 (antbom)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2023-05-08Bibliographically approved
Boman, A. (2008). Sulphur dynamics in boreal potential and actual acid sulphate soils rich in metastable iron sulphide (ed.). (Doctoral dissertation). Åbo, Finland: Åbo Akademi University Press
Open this publication in new window or tab >>Sulphur dynamics in boreal potential and actual acid sulphate soils rich in metastable iron sulphide
2008 (English)Doctoral thesis, comprehensive summary (Other academic)
Place, publisher, year, edition, pages
Åbo, Finland: Åbo Akademi University Press, 2008. p. 70
Identifiers
urn:nbn:se:ltu:diva-17508 (URN)3b826ed0-10d0-11df-bae5-000ea68e967b (Local ID)978-952-12-2214-6 (ISBN)3b826ed0-10d0-11df-bae5-000ea68e967b (Archive number)3b826ed0-10d0-11df-bae5-000ea68e967b (OAI)
Note
Upprättat; 2008; 20100203 (antbom)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved
Nordmyr, L., Boman, A., Åström, M. & Österholm, P. (2006). Estimation of leakage of chemical elements from boreal acid sulphate soils (ed.). Boreal environment research, 11, 261
Open this publication in new window or tab >>Estimation of leakage of chemical elements from boreal acid sulphate soils
2006 (English)In: Boreal environment research, ISSN 1239-6095, E-ISSN 1797-2469, Vol. 11, p. 261-Article in journal (Refereed) Published
Identifiers
urn:nbn:se:ltu:diva-13189 (URN)c60be190-d8f8-11de-bae5-000ea68e967b (Local ID)c60be190-d8f8-11de-bae5-000ea68e967b (Archive number)c60be190-d8f8-11de-bae5-000ea68e967b (OAI)
Note
Upprättat; 2006; 20091124 (antbom)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2023-09-06Bibliographically approved
Backlund, K., Boman, A., Fröjdö, S. & Åström, M. (2005). An analytical procedure for determination of sulphur species and isotopes in boreal acid sulphate soils and sediments (ed.). Agricultural and Food Science, 14(1), 70-82
Open this publication in new window or tab >>An analytical procedure for determination of sulphur species and isotopes in boreal acid sulphate soils and sediments
2005 (English)In: Agricultural and Food Science, ISSN 1459-6067, E-ISSN 1795-1895, Vol. 14, no 1, p. 70-82Article in journal (Refereed) Published
Identifiers
urn:nbn:se:ltu:diva-4623 (URN)10.2137/1459606054224147 (DOI)000229760200008 ()2-s2.0-20444458700 (Scopus ID)299054a0-d8f7-11de-bae5-000ea68e967b (Local ID)299054a0-d8f7-11de-bae5-000ea68e967b (Archive number)299054a0-d8f7-11de-bae5-000ea68e967b (OAI)
Note

Upprättat; 2005; 20091124 (antbom)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2023-05-17Bibliographically approved
Organisations

Search in DiVA

Show all publications