ŁM

Łukasz Maciąg

University of Szczecin

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Dominik Zawadzki

University of Szczecin

Ryszard Kotliński

University of Szczecin

Hongjun Chen

Xihua University

Rafał J. Wróbel

West Pomeranian University of Technology

Andrzej Osadczuk

University of Szczecin

Jakub Miluch

Helmholtz-Zentrum Hereon

Jan Harff

University of Szczecin

Adam Piestrzyński

AGH University of Krakow

Kevin McCartney

University of Maine at Presque Isle

Gabriela A. Kozub‐Budzyń

AGH University of Krakow

Cooperative Institutions

University of Szczecin

China University of Geosciences

Ministry of Natural Resources

West Pomeranian University of Technology

Interplastik (Poland)

Zachodniopomorskie Centrum Onkologii

Polish Geological Institute

Maritime University of Szczecin

Warsaw University of Technology

AGH University of Krakow

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

Geochemistry and Mineralogy of Ferromanganese Crusts from the Western Cocos-Nazca Spreading Centre, Pacific

Minerals (2022)

Dominik Zawadzki Łukasz Maciąg Iker Blasco Javier González Benjamin Wernette

Late Pleistocene–Holocene rocks from the western part of Cocos-Nazca Spreading Centre (C-NSC) include ferromanganese crusts that elucidate the geochemistry and mineralogy of a deep-sea geological setting. Six representative Fe-Mn crust samples were studied using petrological methods, such as optical transmitted light microscopy, energy dispersive X-ray fluorescence spectrometry, inductively coupled plasma mass spectrometry, bulk X-ray diffraction, scanning electron microscopy and electron probe microanalysis. Geochemical, mineralogical and petrological signatures indicate complex formation influenced by mild hydrothermal processes. These crusts consist mostly of mixed birnessite, todorokite-buserite, and Mn-(Fe) vernadite with traces of diagenetic manganates (asbolane), Fe-oxides and oxyhydroxides or hydrothermally associated and relatively pure Mn-oxyhydroxides (manganite). The average Mn/Fe ratio is 2.7, which suggests predominant mixed hydrogenous-early diagenetic crusts with hydrothermal influences. The mean concentrations of three prospective metals (Ni, Cu and Co) are low: 0.17, 0.08 and 0.025 wt %, respectively. The total content of ΣREY is also low, and ranges from 81 to 741 mg/kg (mean 339 mg/kg). We interpret the complex geochemical and mineralogical data to reflect mixed origin of the crusts, initially related with formation of hydrothermal plume over the region. This process occurred during further interactions with seawater from which additional diagenetic and hydrogenetic elemental signatures were acquired.

Ferromanganese

Birnessite

10.3390/min12050538

Cite

Citations (9)

Modeling paleogeographic scenarios of the last glacial cycle as a base for source-to-sink studies: An example from the northwestern shelf of the South China Sea

Journal of Asian Earth Sciences (2020)

Ping Xiong Joanna Dudzińska‐Nowak Jan Harff Xinong Xie Wenyan Zhang

Last Glacial Maximum

River delta

10.1016/j.jseaes.2020.104542

Cite

Citations (15)

Sedimentological and geochemical imprint of environmental changes in late Pleistocene palaeodelta-hosting deposits, southwest of the Hainan Island (South China Sea)

Journal of Asian Earth Sciences (2020)

Ryszard K. Borówka Andrzej Osadczuk Zhao Li Jakub Miluch Krystyna Osadczuk

10.1016/j.jseaes.2020.104502

Cite

Citations (5)

Lithostatistical variability of beach gravels along the Polish coast of Baltic Sea: The Pogorzelica–Dziwnów dataset (363.0–391.4 km)

Data in Brief (2020)

Cyprian Seul Roman Bednarek Tomasz M. Kozłowski Łukasz Maciąg

The data presented in the article consist of petrographic types and grain shape parameters of beach gravels collected along the Pogorzelica-Dziwnów coast section (363.0 to 391.4 km of the coastline), southern Baltic Sea, Poland. Representative gravels with the diameter of 2-5 cm were sampled at 0.25 km intervals, in the middle part of the beach. The contribution of mechanically high resistant crystalline components (igneous and metamorphic rocks: granites and gneisses) and low resistant (sedimentary rocks: limestones, sandstones, and shales) has been presented. The Cailleaux and Zingg grain shape parameters were estimated taking laboratory measurements (3D-axis dimensions, flatness/roundness indices). The calculations have been provided based on the gravels weight and quantity. The obtained grain shape parameters depend on factors such as resistance to mechanical destruction or increased chemical weathering, being evidenced by several indices, such as the proportions between discoidal and ellipsoidal grains, or amount of spindle-shaped gravels. The calculated indices may serve as potential indicators of coastal lithodynamics, including intensity of sediment redeposition or mechanical reworking of the beach.

Roundness (object)

10.1016/j.dib.2020.106538

Cite

Citations (0)

Zmienność litologiczna osadów ilasto-krzemionkowych z obszaru IOM (strefa rozłamowa Clarion-Clipperton; E Pacyfik)

Górnictwo i Geoinżynieria (2011)

Łukasz Maciąg Ryszard Kotliński Ryszard K. Borówka

CLARION

Source

Cite

Citations (0)

Application of multivariate geostatistics for local-scale lithological mapping – case study of pelagic surface sediments from the Clarion-Clipperton Fracture Zone, north-eastern equatorial Pacific (Interoceanmetal claim area)

Computers & Geosciences (2020)

Łukasz Maciąg Jan Harff

Multivariate geostatistical methods were employed to describe the local facies of surface pelagic sediments from the Interoceanmetal IOM H11 and H22 perspective areas. Using these methods, we analyze spatial variability in seafloor features, sediment grain size, and mineralogical and geochemical composition. The data were acquired from the seafloor sediments sampled by box corer. Laboratory methods included laser grain size analysis, X-Ray diffractometry and Inducted Coupled Plasma Mass Spectrometry. Universal kriging was applied in order to generate lithofacies maps, following the "classification probability kriging" concept based on a Bayesian theorem. Under this concept, the class membership probabilities are regarded regionalized variables, so that methodical tool of geostatistics can be applied. The final result is a series of thematic maps, showing the spatial distribution of classified sediments facies, expressed by class membership probabilities, which provide information on reliability of mapping. The applied models can be useful for geological exploration of Clarion-Clipperton polymetallic nodules deposit and beyond. The lithofacies maps presented here provide information on formation processes of sediments, induced by several factors, such as diagenetic transformation of sediments and pathways of biogenic, hydrogenous or hydrothermal material.

Geostatistics

Seafloor Spreading

10.1016/j.cageo.2020.104474

Cite

Citations (16)

POTENTIAL AND RECENT PROBLEMS OF THE POSSIBLE POLYMETALLIC SOURCES IN THE OCEANIC DEPOSITS

Geology and Mineral Resources of World Ocean (2015)

Ryszard Kotliński Łukasz Maciąg Dominik Zawadzki

Paper presents economical potential on obtaining critical metals from oceanic polymetallic deposits and selected geopolitical problems associated with seafloor partitation.In the group of the most important oceanic metal deposits are: (1) heavy minerals placers, (2) polymetallic nodules, (3) cobaltrich ferromanganese crusts, (4) seafloor massive sulphides (SMS) and (5) metalliferrous sediments (oozes and clays). Several ofthem have been considered as the alternative sources of critical metals for high andgreentechnology applications. Their occurrence, global distribution, resources andorigins are a direct reflection of the geodynamic evolution of the oceans. The authors also discuss international legal regulations regarding research,prospection, exploration and exploitation of oceanic mineral deposits, including registration of the most promising mining areas by International Seabed Authority in accordance with The United Nations Convention on the Law of the Sea (UNCLOS 1982).

Seafloor Spreading

Seabed

Source

Cite

Citations (8)

Mineralogy and Geochemistry of Fluvial-Lacustrine Pisolith Micronodules from the Roztoka Odrzańska, Odra River, NW Poland

Geosciences (2019)

Łukasz Maciąg Urszula Rydzewska Artur Skowronek Sylwester Salwa

Small-sized ferruginous micronodules or pisolith nodules, frequently occurring in inland freshwater systems in moderate climate zones, are important indicators of groundwater level changes and early diagenetic processes, especially within the Pleistocene post-glacial sedimentary systems, including swamps, peatbogs, rivers, or lakes. Compared to the other geochemical environments, pisolith nodules are usually dominated by iron hydroxides and oxides. In most cases, described micronodules indicate high phosphatization, significant contribution of allogenic detrital components, and low manganese content. The major aim of the article is to present textural, geochemical, and mineralogical variability of pisolith nodules recovered from the Roztoka Odrzańska, Odra river mouth area, NW Poland. We describe genetical relations between different types of pisoliths and try to interpret the possible formation phenomena. Analyzed loose ferruginous micronodules were separated from the lacustrine silty-clayey sapropel muds and gyttja, later analyzed using optical microscopy, SEM-energy dispersive x-ray (EDX), and XRD methods. As a reference material, we use archival iron bog ores and geochemical data of different types of nodules. Additionally, we describe previously unknown siderite-rich nodules found in neighboring sites of the Dąbie Lake and the Szczecin Lagoon.

Sapropel

10.3390/geosciences10010003

Cite

Citations (3)

APPLICATON OF PORTABLE GAUSSMETER FOR FIELD AND LABORATORY MEASUREMENTS OF MAGNETIC PROPERITIES OF VOLCANIC ROCKS � CASE STUDY FROM PIENINY CLIPPEN BELT, OUTER WESTERN CARPATHIANS, POLAND

International Multidisciplinary Scientific GeoConference SGEM ... (2019)

Łukasz Maciąg

10.5593/sgem2019/1.1/s05.094

Cite

Citations (0)

Multivariate geostatistical modeling of seismic data: Case study of the Late Pleistocene paleodelta architecture (SW off-shore Hainan Island, south China sea)

Marine and Petroleum Geology (2021)