Meixun Zhao
Dados Biográficos
| ID | 5601070 |
|---|---|
| NOME | Meixun Zhao |
| PRENOMES | Meixun |
| SOBRENOME | Zhao |
| ASSINATURA | ZHAO M |
| AFILIAÇÕES | Ocean University of China |
| ORCID | 0000-0001-9450-6448 |
| VERIFICADO | Sim |
| TOTAL DE OBRAS | 8 |
| TOTAL DE CITAÇÕES | 4 |
| TOTAL COMO AUTOR | 8 |
| TOTAL COMO EDITOR | 0 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 1998 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 2026 |
| ÍNDICE H | 1 |
Assessments of radiocarbon measurements of dissolved organic carbon for small/ultra-small samples by Micadas
The radiocarbon ( 14 C) composition of dissolved organic carbon (DOC) provides critical constraints on its sources, transformation and fates. UV-irradiation is an effective approach to completely oxidize DOC to CO 2 for radiocarbon measurements. In this study, we aimed to evaluate the performance of radiocarbon measurements for small/ultra-small size natural DOC samples using mini carbon dating system (MICADAS) using CO 2 gas as the target. The p…
The Influence of Plant Species and Pretreatment on the 14 C Age of Carex -Dominated Peat Plants of a Peat Core From Jinchuan Mire, Ne China
The comparisons among 126 14 C dates of Carex samples including separated leaf and root parts with acid (A)-treatment and acid-base-acid (ABA)-treatment, and 48 published 14 C dates of bulk peat plants on a 92-cm core from Jinchuan Mire in NE China, indicate old carbon influence (OCI) on the 14 C dates. The OCI varies with plant species, pretreatment and peat depth. In vascular peat plants such as Carex , humin fractions (remains after ABA treatm…
Ams 14 C Dating and Stable Isotope Analysis on an 8-Kyr Oyster Shell From Taipei Basin
Seven accelerator mass spectrometry radiocarbon (AMS 14 C) dates (7260±106∼7607±95 BP averaged 7444±103 BP) on a giant oyster shell, collected from an ancient shore of the Taipei Basin, are similar to the LSC (liquid scintillation counting) 14 C age (7260±46 BP) of a grass sample inside the shell. The calibrated 14 C ages of the C. gigas by Marine20 are 7490±240∼7805±230 cal BP (average 7660±96 cal BP), generally agreed with the calibrated LSC 14…
Spatiotemporal temperature variations in the East China Sea shelf during the Holocene in response to surface circulation evolution
Ecosystem responses to anthropogenic and natural forcing over the last 100 years in the coastal areas of the East China Sea
Ecosystem changes of the coastal areas of the East China Sea (ECS) during the past 30 years have been characterized by increased productivity and increased occurrences of dinoflagellate red tides; both were commonly attributed to be caused by anthropogenic input of nutrients. However, climate-driven regime shifts were found in the Pacific, but they have not been observed in the ECS owing to the lack of continuous high resolution data. Hence, it i…
Deglacial and Holocene Archaeal Lipid-Inferred Paleohydrology and Paleotemperature History of Lake Qinghai, Northeastern Qinghai–Tibetan Plateau
We investigate the distribution of archaeal lipids in a 5.8-m-long sedimentary core recovered from Lake Qinghai to extract regional hydroclimate and temperature signals since the last deglaciation for this important region. The paleohydrology was reconstructed from the relative abundance of thaumarchaeol (%thaum) and the archaeol and caldarchaeol ecometric (ACE) index. The %thaum-inferred lake-level record was extended to deglaciation, showing th…
Holocene shifts in riverine fine-grained sediment supply to the East China Sea Distal Mud in response to climate change
Holocene changes in fine-grained sediment supplies to the East China Sea outer shelf were uncovered, through the mineralogical and geochemical analysis of Core B3 in the East China Sea Distal Mud (ECSDM). Based on the lithology, accelerator mass spectrometry (AMS) 14 C dating, and sea-level change, Core B3 can be divided into two major units: transgressive stage (Unit 1: 12.5–6.8 kyr) and highstand stage (Unit 2: 6.8–0 kyr). Significant discrepan…
A Large California Flood and Correlative Global Climatic Events 400 Years Ago
A gray silt layer 1–2 cm thick in the central Santa Barbara Basin, dated by varve counts to A.D. 1605 ± 5 yr, implies an intensity of precipitation, flooding of regional rivers, and transport of terrigenous detritus unmatched in the last 1000 yr. The inferred flood may correlate with the reported rare occurrence of a perennial lake ( 14 C dated to 390 ± 90 B.P.) in California's Mojave Desert, 300 km east of the area draining into the Santa Barbar…
Ecosystem responses to anthropogenic and natural forcing over the last 100 years in the coastal areas of the East China Sea
Ecosystem changes of the coastal areas of the East China Sea (ECS) during the past 30 years have been characterized by increased productivity and increased occurrences of dinoflagellate red tides; both were commonly attributed to be caused by anthropogenic input of nutrients. However, climate-driven regime shifts were found in the Pacific, but they have not been observed in the ECS owing to the lack of continuous high resolution data. Hence, it i…
The Influence of Plant Species and Pretreatment on the 14 C Age of Carex -Dominated Peat Plants of a Peat Core From Jinchuan Mire, Ne China
The comparisons among 126 14 C dates of Carex samples including separated leaf and root parts with acid (A)-treatment and acid-base-acid (ABA)-treatment, and 48 published 14 C dates of bulk peat plants on a 92-cm core from Jinchuan Mire in NE China, indicate old carbon influence (OCI) on the 14 C dates. The OCI varies with plant species, pretreatment and peat depth. In vascular peat plants such as Carex , humin fractions (remains after ABA treatm…
Holocene shifts in riverine fine-grained sediment supply to the East China Sea Distal Mud in response to climate change
Holocene changes in fine-grained sediment supplies to the East China Sea outer shelf were uncovered, through the mineralogical and geochemical analysis of Core B3 in the East China Sea Distal Mud (ECSDM). Based on the lithology, accelerator mass spectrometry (AMS) 14 C dating, and sea-level change, Core B3 can be divided into two major units: transgressive stage (Unit 1: 12.5–6.8 kyr) and highstand stage (Unit 2: 6.8–0 kyr). Significant discrepan…
A Large California Flood and Correlative Global Climatic Events 400 Years Ago
A gray silt layer 1–2 cm thick in the central Santa Barbara Basin, dated by varve counts to A.D. 1605 ± 5 yr, implies an intensity of precipitation, flooding of regional rivers, and transport of terrigenous detritus unmatched in the last 1000 yr. The inferred flood may correlate with the reported rare occurrence of a perennial lake ( 14 C dated to 390 ± 90 B.P.) in California's Mojave Desert, 300 km east of the area draining into the Santa Barbar…
Holocene shifts in riverine fine-grained sediment supply to the East China Sea Distal Mud in response to climate change
Holocene changes in fine-grained sediment supplies to the East China Sea outer shelf were uncovered, through the mineralogical and geochemical analysis of Core B3 in the East China Sea Distal Mud (ECSDM). Based on the lithology, accelerator mass spectrometry (AMS) 14 C dating, and sea-level change, Core B3 can be divided into two major units: transgressive stage (Unit 1: 12.5–6.8 kyr) and highstand stage (Unit 2: 6.8–0 kyr). Significant discrepan…
Deglacial and Holocene Archaeal Lipid-Inferred Paleohydrology and Paleotemperature History of Lake Qinghai, Northeastern Qinghai–Tibetan Plateau
We investigate the distribution of archaeal lipids in a 5.8-m-long sedimentary core recovered from Lake Qinghai to extract regional hydroclimate and temperature signals since the last deglaciation for this important region. The paleohydrology was reconstructed from the relative abundance of thaumarchaeol (%thaum) and the archaeol and caldarchaeol ecometric (ACE) index. The %thaum-inferred lake-level record was extended to deglaciation, showing th…
Ecosystem responses to anthropogenic and natural forcing over the last 100 years in the coastal areas of the East China Sea
Ecosystem changes of the coastal areas of the East China Sea (ECS) during the past 30 years have been characterized by increased productivity and increased occurrences of dinoflagellate red tides; both were commonly attributed to be caused by anthropogenic input of nutrients. However, climate-driven regime shifts were found in the Pacific, but they have not been observed in the ECS owing to the lack of continuous high resolution data. Hence, it i…
Spatiotemporal temperature variations in the East China Sea shelf during the Holocene in response to surface circulation evolution
The Influence of Plant Species and Pretreatment on the 14 C Age of Carex -Dominated Peat Plants of a Peat Core From Jinchuan Mire, Ne China
The comparisons among 126 14 C dates of Carex samples including separated leaf and root parts with acid (A)-treatment and acid-base-acid (ABA)-treatment, and 48 published 14 C dates of bulk peat plants on a 92-cm core from Jinchuan Mire in NE China, indicate old carbon influence (OCI) on the 14 C dates. The OCI varies with plant species, pretreatment and peat depth. In vascular peat plants such as Carex , humin fractions (remains after ABA treatm…
Ams 14 C Dating and Stable Isotope Analysis on an 8-Kyr Oyster Shell From Taipei Basin
Seven accelerator mass spectrometry radiocarbon (AMS 14 C) dates (7260±106∼7607±95 BP averaged 7444±103 BP) on a giant oyster shell, collected from an ancient shore of the Taipei Basin, are similar to the LSC (liquid scintillation counting) 14 C age (7260±46 BP) of a grass sample inside the shell. The calibrated 14 C ages of the C. gigas by Marine20 are 7490±240∼7805±230 cal BP (average 7660±96 cal BP), generally agreed with the calibrated LSC 14…
Assessments of radiocarbon measurements of dissolved organic carbon for small/ultra-small samples by Micadas
The radiocarbon ( 14 C) composition of dissolved organic carbon (DOC) provides critical constraints on its sources, transformation and fates. UV-irradiation is an effective approach to completely oxidize DOC to CO 2 for radiocarbon measurements. In this study, we aimed to evaluate the performance of radiocarbon measurements for small/ultra-small size natural DOC samples using mini carbon dating system (MICADAS) using CO 2 gas as the target. The p…
Geology and Paleoclimatology Research (8 obras) · Geology (4 obras) · Oceanography (4 obras) · Holocene (3 obras) · Accelerator mass spectrometry (2 obras) · Biology (2 obras) · Carbon fibers (2 obras) · Climate change (2 obras) · Climatology (2 obras) · Ecology (2 obras)