厦门大学同位素海洋化学实验室

2020.11.13

14:30

周隆泉楼

A3-206

赵秀峰

Influence of Mekong River plume and dipole eddies on the export of particulate organic and black carbon based on ²¹⁰Po-²¹⁰Pb disequilibria

申雅晴

陈金旭

The freshwater components of water masses in the Prydz Bay based on oxygen isotope study

王易

²¹⁰Po-²¹⁰Pb disequilibria in the Arctic Ocean: Comparison of 6th Arctic Expedition and other Cruises

报告提要

赵秀峰：1. Influence of the MR plume and dipole eddies on POC and PBC spatial patterns.2. The different export mode between POC and PBC in the MR plume.

陈金旭：1. Study area and method. 2. Temporal variation of T/S/δ¹⁸O in different water masses. 3. Result of the freshwater components distribution and temporal variation.

王易：1. Characteristics of ²¹⁰Po removal in relation to particle export in Chukchi-Beaufort slope area. 2. General pattern of ²¹⁰Po removal in Arctic basins, based on 6th Arctic Expedition dataset and other published data.

2020.11.27

14:30

周隆泉楼

B3-202

杨紫菲

Early diagenesis processes and paleoceanographic records in sediments of subtropical Pacific showed by different proxies

唐震

杨睿

Feasibility analysis of tracing Phosphorus sources in Jiulong River: Insights from phosphate oxygen isotope ratios

张欣如

土壤样品中Fe和Th溶解度研究

报告提要

杨紫菲：1. Degradation of organic matter during early diagenesis. 2. Chanig of eolian import and biologic productivity during the past 200ka.

杨睿：1. Research idea of phosphate oxygen isotope tracer phosphorus source.2. Future work.

张欣如：土壤样品中Fe和Th溶解度研究

2020.12.04

14:30

周隆泉楼

A3-206

许子夫

Isotopic Effects of Oxygen Isotopes in Organic Phosphates--A Key Factor in the Oceanic Phosphorus Cycle

宁江豪

李佳旭

Using ²¹⁰Po/²¹⁰Pb disequilibrium to quantified  particle export in the oceans: Fe(OH)₃ compared to Co-APDC

田杰

Study of ²¹⁰Bi and Bi in natural samples

报告提要

许子夫：1. The oceanic phosphorus cycle. 2. Application of inorganic phosphate oxygen isotope technology in oceanic phosphorus cycle. 3. The limitation of phosphate oxygen isotope technology in the ocean. 4. Discussion on the relationship between oxygen isotope of organic phosphate in organism and environmental temperature and oxygen isotope of water.

李佳旭：1. ²¹⁰Po activities are lower when using Fe(OH)₃ instead of Co-APDC for precipitation. 2. Fe(OH)₃ can potentially overestimate the export flux of ²¹⁰Po on sinking particles .

田杰：1. Improvement of measuring ²¹⁰Bi and ²¹⁰Po by simultaneous self-deposition on nickel sheets. 2. A preliminary study on Bi behavior in continental shelf sediments in the South China Sea.