Jonas Mažeika
Datos Biográficos
| ID | 234460 |
|---|---|
| NOMBRE | Jonas Mažeika |
| NOMBRES | Jonas |
| APELLIDO | Mažeika |
| FIRMA | MAŽEIKA J |
| AFILIACIONES | Nature Research Centre |
| ORCID | 0000-0003-1168-5394 |
| VERIFICADO | Sí |
| TOTAL DE OBRAS | 18 |
| TOTAL DE CITAS | 43 |
| TOTAL COMO AUTOR | 18 |
| TOTAL COMO EDITOR | 0 |
| PRIMER AÑO DE PUBLICACIÓN | 2008 |
| AÑO MÁS RECIENTE DE PUBLICACIÓN | 2026 |
| ÍNDICE H | 4 |
Carbon-14 in the environment near the Belarusian and the Ignalina nuclear power plants in 2016–2025
Carbon-14 ( 1 4C) is a critical radionuclide for environmental monitoring around nuclear facilities due to its high mobility, atmospheric prevalence, and incorporation into the biosphere via photosynthesis. This study presents the results of a 1 4C monitoring (2016–2025) in terrestrial and aquatic ecosystems within the vicinities of two nuclear power plants situated 98 km apart: the newly commissioned Belarusian NPP (BelNPP) and the Ignalina NPP …
Response of freshwater diatoms to Early−Middle Holocene climate changes, SW Lithuania
C and Other Radionuclides in the Environment in the Border Region of Lithuania Before the Start of the Belarusian Nuclear Power Plant Operation
In this paper, we analyze the background activity of anthropogenic radionuclides ( 14 C, 3 H, 137 Cs, and 239,240 Pu), emphasizing 14 C content, in terrestrial and aquatic ecosystems in the Lithuanian border region before the commissioning of a new nuclear power plant in Belarus (BelNPP). In terrestrial samples, the 14 C concentration varied insignificantly—from 98.6 ± 0.7 to 102.2 ± 0.8 pMC, which is close to the 14 C level in atmospheric CO 2 .…
Ancient Logboats in Lithuania
More than 70 logboats are known in Lithuania and about half of them date before 1800 cal AD. This paper reviews these more ancient logboats, which were discovered in the beds of former or still existing lakes and rivers and present new radiocarbon ( 14 C) dates and wood taxa identifications. Special attention is paid to the logboat found at Šventoji 58, which is at present the oldest 14 C-dated (2895–2640 cal BC) logboat found East of the Baltic …
Fishing history of the East Baltic during the Holocene according to underwater multiperiod riverine site Kaltanėnai, northeastern Lithuania
Tracing Carbon Isotope Variations in Lake Sediments Caused by Environmental Factors During the Past Century
In this study, we examined how land use and urbanization changes in adjacent areas affected biological productivity and carbon cycling in a lake ecosystem over 100 years and how these changes are reflected in carbon isotope variations. We performed radiocarbon ( 14 C) activity and stable carbon isotope ratio analysis in two organic fractions: humin and humic acids of lake sediment. Additionally, we performed pigment and diatom analysis and determ…
Human-Horse Burials in Lithuania in the Late Second to Seventh Century ad
Contemporary Lithuania, an area of the Balt cultures, is the northernmost region where burials, dated from the late second to the late seventh century ad , have been found with selected parts or whole bodies of horses. This study presents new information about these burials based on a multidisciplinary—archaeological, zooarchaeological, and chronological—approach. Our aim is to reconstruct the funeral rites and the human-horse relationships in Li…
Lateglacial and early Holocene environmental dynamics in northern Lithuania
Δ 14 C and δ 13 C Variations in Organic Fractions of Baltic Sea Sediments
This article investigates variations of Δ 14 C and δ 13 C of total organic carbon (TOC) in sediments as well as in humic acids, lipid, and phospholipid fractions isolated from the surface (0–3 cm) sediment samples collected in the Curonian Lagoon and in the Baltic Sea. This study was performed to estimate relative contributions of the marine and terrestrial inputs to organic carbon in sediments, to assess a possible effect of petroleum hydrocarbo…
Population history and palaeoenvironment in the Skomantai archaeological site, West Lithuania
Radiocarbon and Other Environmental Isotopes in the Groundwater of the Sites for a Planned New Nuclear Power Plant in Lithuania
The assessment of construction sites for the new Visaginas Nuclear Power Plant (Visaginas NPP), including groundwater characterization, took place over the last few years. For a better understanding of the groundwater system, studies on radiocarbon; tritium; stable isotopes of hydrogen, oxygen, and carbon; and helium content were carried out at the location of the new NPP, at the Western and Eastern sites, as well as in the near-surface repositor…
C in Radioactive Waste for Decommissioning of the Ignalina Nuclear Power Plant
Radiocarbon is one of the most significant radionuclides affecting the safety margins of near-surface repositories for the disposal of low- and intermediate-level, short-lived radioactive waste, arising from the operation and decommissioning of nuclear power plants (NPPs). One of the goals of the present study was to characterize radioactive waste from Ignalina NPP (Lithuania) (storage tanks TW18B01 and TW11B03) from the spent ion-exchange resins…
Skomantai Hill-Fort in Western Lithuania
Hill-forts are visually distinct archaeological monuments of the Lithuanian landscape; despite excavations that have recently become more intensive, more often than not we still make judgments of hill-forts on the basis of their surviving image, which is assumed to reflect the final stage of their existence. Usually our knowledge about the size of the settlement at its foot, its planigraphy, and of course chronology, is too slender to make any co…
Lateglacial and early-Holocene palaeohydrological changes in the upper reaches of the Ūla River
A reconstructed pattern of Lateglacial and Holocene hydrological changes in the area of the former lakes Dūbas, Pelesa and Matara is presented. The investigated basin is situated in southeastern Lithuania, beyond the marginal ridge of the Weichselian Glaciation, on the margin of the sandy plain that is the watershed between the Ūla and Katra rivers. Pollen analysis, radiocarbon dating, loss-on-ignition measurements and GIS-based simulation of wat…
History of the Environment and Population of the Old Town of Klaipėda, Western Lithuania
Progressive stages in the development of the Old Town region of the city of Klaipėda (in German, Memel ) were ascertained by analyzing archaeological and historical data combined with an analysis of pollen, diatom, plant macrofossil, and osteological findings as cross-referenced with radiocarbon measurements. The port city of Klaipėda, located on the eastern part of the Baltic Sea, was an important political, economic, and religious center during…
New Archaeological, Paleoenvironmental, and 14 C Data from the Šventoji Neolithic Sites, NW Lithuania
Archaeological, geological, and paleoecological investigations supported by radiocarbon dating enabled us to present a reconstruction of chronologically based paleoenvironmental and human activity changes in the Šventoji region, NW Lithuania, during the period 4000–800 cal BC. In addition, we describe the main stages of the Late Glacial and Holocene periods in the area. The Baltic Ice Lake regression was succeeded by a terrestrial period until th…
Middle Weichselian palaeolacustrine basin in the Venta river valley and vicinity (northwest Lithuania), exemplified by the Purviai outcrop
Environmental conditions and human interference during the 6th and 13th–15th centuries a.d. at Vilnius Lower Castle, east Lithuania
Environmental conditions and human interference during the 6th and 13th–15th centuries a.d. at Vilnius Lower Castle, east Lithuania
Fishing history of the East Baltic during the Holocene according to underwater multiperiod riverine site Kaltanėnai, northeastern Lithuania
Human-Horse Burials in Lithuania in the Late Second to Seventh Century ad
Contemporary Lithuania, an area of the Balt cultures, is the northernmost region where burials, dated from the late second to the late seventh century ad , have been found with selected parts or whole bodies of horses. This study presents new information about these burials based on a multidisciplinary—archaeological, zooarchaeological, and chronological—approach. Our aim is to reconstruct the funeral rites and the human-horse relationships in Li…
New Archaeological, Paleoenvironmental, and 14 C Data from the Šventoji Neolithic Sites, NW Lithuania
Archaeological, geological, and paleoecological investigations supported by radiocarbon dating enabled us to present a reconstruction of chronologically based paleoenvironmental and human activity changes in the Šventoji region, NW Lithuania, during the period 4000–800 cal BC. In addition, we describe the main stages of the Late Glacial and Holocene periods in the area. The Baltic Ice Lake regression was succeeded by a terrestrial period until th…
C in Radioactive Waste for Decommissioning of the Ignalina Nuclear Power Plant
Radiocarbon is one of the most significant radionuclides affecting the safety margins of near-surface repositories for the disposal of low- and intermediate-level, short-lived radioactive waste, arising from the operation and decommissioning of nuclear power plants (NPPs). One of the goals of the present study was to characterize radioactive waste from Ignalina NPP (Lithuania) (storage tanks TW18B01 and TW11B03) from the spent ion-exchange resins…
Ancient Logboats in Lithuania
More than 70 logboats are known in Lithuania and about half of them date before 1800 cal AD. This paper reviews these more ancient logboats, which were discovered in the beds of former or still existing lakes and rivers and present new radiocarbon ( 14 C) dates and wood taxa identifications. Special attention is paid to the logboat found at Šventoji 58, which is at present the oldest 14 C-dated (2895–2640 cal BC) logboat found East of the Baltic …
Response of freshwater diatoms to Early−Middle Holocene climate changes, SW Lithuania
Tracing Carbon Isotope Variations in Lake Sediments Caused by Environmental Factors During the Past Century
In this study, we examined how land use and urbanization changes in adjacent areas affected biological productivity and carbon cycling in a lake ecosystem over 100 years and how these changes are reflected in carbon isotope variations. We performed radiocarbon ( 14 C) activity and stable carbon isotope ratio analysis in two organic fractions: humin and humic acids of lake sediment. Additionally, we performed pigment and diatom analysis and determ…
Δ 14 C and δ 13 C Variations in Organic Fractions of Baltic Sea Sediments
This article investigates variations of Δ 14 C and δ 13 C of total organic carbon (TOC) in sediments as well as in humic acids, lipid, and phospholipid fractions isolated from the surface (0–3 cm) sediment samples collected in the Curonian Lagoon and in the Baltic Sea. This study was performed to estimate relative contributions of the marine and terrestrial inputs to organic carbon in sediments, to assess a possible effect of petroleum hydrocarbo…
Radiocarbon and Other Environmental Isotopes in the Groundwater of the Sites for a Planned New Nuclear Power Plant in Lithuania
The assessment of construction sites for the new Visaginas Nuclear Power Plant (Visaginas NPP), including groundwater characterization, took place over the last few years. For a better understanding of the groundwater system, studies on radiocarbon; tritium; stable isotopes of hydrogen, oxygen, and carbon; and helium content were carried out at the location of the new NPP, at the Western and Eastern sites, as well as in the near-surface repositor…
Environmental conditions and human interference during the 6th and 13th–15th centuries a.d. at Vilnius Lower Castle, east Lithuania
Middle Weichselian palaeolacustrine basin in the Venta river valley and vicinity (northwest Lithuania), exemplified by the Purviai outcrop
Skomantai Hill-Fort in Western Lithuania
Hill-forts are visually distinct archaeological monuments of the Lithuanian landscape; despite excavations that have recently become more intensive, more often than not we still make judgments of hill-forts on the basis of their surviving image, which is assumed to reflect the final stage of their existence. Usually our knowledge about the size of the settlement at its foot, its planigraphy, and of course chronology, is too slender to make any co…
Lateglacial and early-Holocene palaeohydrological changes in the upper reaches of the Ūla River
A reconstructed pattern of Lateglacial and Holocene hydrological changes in the area of the former lakes Dūbas, Pelesa and Matara is presented. The investigated basin is situated in southeastern Lithuania, beyond the marginal ridge of the Weichselian Glaciation, on the margin of the sandy plain that is the watershed between the Ūla and Katra rivers. Pollen analysis, radiocarbon dating, loss-on-ignition measurements and GIS-based simulation of wat…
History of the Environment and Population of the Old Town of Klaipėda, Western Lithuania
Progressive stages in the development of the Old Town region of the city of Klaipėda (in German, Memel ) were ascertained by analyzing archaeological and historical data combined with an analysis of pollen, diatom, plant macrofossil, and osteological findings as cross-referenced with radiocarbon measurements. The port city of Klaipėda, located on the eastern part of the Baltic Sea, was an important political, economic, and religious center during…
New Archaeological, Paleoenvironmental, and 14 C Data from the Šventoji Neolithic Sites, NW Lithuania
Archaeological, geological, and paleoecological investigations supported by radiocarbon dating enabled us to present a reconstruction of chronologically based paleoenvironmental and human activity changes in the Šventoji region, NW Lithuania, during the period 4000–800 cal BC. In addition, we describe the main stages of the Late Glacial and Holocene periods in the area. The Baltic Ice Lake regression was succeeded by a terrestrial period until th…
Population history and palaeoenvironment in the Skomantai archaeological site, West Lithuania
Radiocarbon and Other Environmental Isotopes in the Groundwater of the Sites for a Planned New Nuclear Power Plant in Lithuania
The assessment of construction sites for the new Visaginas Nuclear Power Plant (Visaginas NPP), including groundwater characterization, took place over the last few years. For a better understanding of the groundwater system, studies on radiocarbon; tritium; stable isotopes of hydrogen, oxygen, and carbon; and helium content were carried out at the location of the new NPP, at the Western and Eastern sites, as well as in the near-surface repositor…
C in Radioactive Waste for Decommissioning of the Ignalina Nuclear Power Plant
Radiocarbon is one of the most significant radionuclides affecting the safety margins of near-surface repositories for the disposal of low- and intermediate-level, short-lived radioactive waste, arising from the operation and decommissioning of nuclear power plants (NPPs). One of the goals of the present study was to characterize radioactive waste from Ignalina NPP (Lithuania) (storage tanks TW18B01 and TW11B03) from the spent ion-exchange resins…
Lateglacial and early Holocene environmental dynamics in northern Lithuania
Δ 14 C and δ 13 C Variations in Organic Fractions of Baltic Sea Sediments
This article investigates variations of Δ 14 C and δ 13 C of total organic carbon (TOC) in sediments as well as in humic acids, lipid, and phospholipid fractions isolated from the surface (0–3 cm) sediment samples collected in the Curonian Lagoon and in the Baltic Sea. This study was performed to estimate relative contributions of the marine and terrestrial inputs to organic carbon in sediments, to assess a possible effect of petroleum hydrocarbo…
Human-Horse Burials in Lithuania in the Late Second to Seventh Century ad
Contemporary Lithuania, an area of the Balt cultures, is the northernmost region where burials, dated from the late second to the late seventh century ad , have been found with selected parts or whole bodies of horses. This study presents new information about these burials based on a multidisciplinary—archaeological, zooarchaeological, and chronological—approach. Our aim is to reconstruct the funeral rites and the human-horse relationships in Li…
Tracing Carbon Isotope Variations in Lake Sediments Caused by Environmental Factors During the Past Century
In this study, we examined how land use and urbanization changes in adjacent areas affected biological productivity and carbon cycling in a lake ecosystem over 100 years and how these changes are reflected in carbon isotope variations. We performed radiocarbon ( 14 C) activity and stable carbon isotope ratio analysis in two organic fractions: humin and humic acids of lake sediment. Additionally, we performed pigment and diatom analysis and determ…
Ancient Logboats in Lithuania
More than 70 logboats are known in Lithuania and about half of them date before 1800 cal AD. This paper reviews these more ancient logboats, which were discovered in the beds of former or still existing lakes and rivers and present new radiocarbon ( 14 C) dates and wood taxa identifications. Special attention is paid to the logboat found at Šventoji 58, which is at present the oldest 14 C-dated (2895–2640 cal BC) logboat found East of the Baltic …
Fishing history of the East Baltic during the Holocene according to underwater multiperiod riverine site Kaltanėnai, northeastern Lithuania
C and Other Radionuclides in the Environment in the Border Region of Lithuania Before the Start of the Belarusian Nuclear Power Plant Operation
In this paper, we analyze the background activity of anthropogenic radionuclides ( 14 C, 3 H, 137 Cs, and 239,240 Pu), emphasizing 14 C content, in terrestrial and aquatic ecosystems in the Lithuanian border region before the commissioning of a new nuclear power plant in Belarus (BelNPP). In terrestrial samples, the 14 C concentration varied insignificantly—from 98.6 ± 0.7 to 102.2 ± 0.8 pMC, which is close to the 14 C level in atmospheric CO 2 .…
Response of freshwater diatoms to Early−Middle Holocene climate changes, SW Lithuania
Carbon-14 in the environment near the Belarusian and the Ignalina nuclear power plants in 2016–2025
Carbon-14 ( 1 4C) is a critical radionuclide for environmental monitoring around nuclear facilities due to its high mobility, atmospheric prevalence, and incorporation into the biosphere via photosynthesis. This study presents the results of a 1 4C monitoring (2016–2025) in terrestrial and aquatic ecosystems within the vicinities of two nuclear power plants situated 98 km apart: the newly commissioned Belarusian NPP (BelNPP) and the Ignalina NPP …
Geology (13 obras) · Geography (12 obras) · Archaeology (9 obras) · Geology and Paleoclimatology Research (8 obras) · Holocene (8 obras) · Radiocarbon dating (8 obras) · Oceanography (7 obras) · Paleontology (7 obras) · Ecology (6 obras) · Historical and Archaeological Studies (6 obras)