学习经历：

2004/09—2008/06，兰州大学，学士

2008/09—2010/06，兰州大学，硕士

2011/09—2014/06，中国科学院大学，博士

工作经历：

2010/07—2016/12，中国科学院地质与地球物理研究所兰州油气资源研究中心，研究实习员，助理研究员

2017/01—今，中国科学院西北生态环境资源研究院，副研究员

期间，2014/11—2014/12，日本东京大学，访问学者（1月）

2019/12—2020/12，美国印第安纳大学布卢明顿分校，访问学者（1年）

气体地球化学、油气地质

1、准噶尔盆地南缘泥火山气体地球化学特征与碳排放研究，中国科学院西部青年学者A类项目，2019/01-2021/12，主持。

2、含铁矿物促进有有机质成烃的作用机理研究，国家自然科学基金面上项目，2019/01-2022/12，主持。

3、俯冲带深部过程与非生物成气，国家重点研发计划变革性技术专项，2020/06-2025/05，主要参加人。

4、复杂地质介质中氦气运聚及富氦气藏封盖机制研究，国家重点研发计划变革性技术专项，2021/12-2026/11，主要参加人。

5、泥火山系统地质流体演化与地壳环境研究，国家自然科学基金国际（地区）合作项目，2023/01-2025/12，主要参加人，第二合作单位负责人。

(1)   Ma XX, Ma Y, Zhang L, Sajjad W, Xu W, Shao YY, Pinti LD., Fan QF, Zheng GD. Seasonal variations of geofluids from mud volcano systems in the Southern Junggar Basin, NW China. Science of the Total Environment, 2022, 844, 157164.

(2)   马勇, 马向贤^*, 张力, 胥旺, 李小雅, 卢昌顺, 傅庆州, 郑国东. 准噶尔盆地南缘白杨沟泥火山群地质流体的地球化学特征. 地球化学, 2022, 51(4), 492-502.

(3)   张力, 马向贤^*, 马勇, 胥旺, 邵媛媛, 胡国艺, 郑国东. 基于硫元素化学种等指标的页岩氧化还原条件判识. 沉积学报, 2022, 40(5), 1427-1438.

(4)   Zheng GD, Martinelli G, Wang YX, Li S, Ma XX. Notes for a History of Gas Geochemistry. Journal of Earth Science, 2022, 33(6), 1614-1623.

(5)   Xu W, Zheng GD, Ma XX, Fortin D, Fu CC, Li Q, Chelnokov G, Ershov V. Chemical and isotopic features of seepage gas from mud volcanoes in southern margin of the Junggar Basin, NW China. Applied Geochemistry, 2022, 136, 105145.

(6)   Ma XX, Liu B, Brazell C, Masterlz M, Drobniak A, Schimmelmann A. Methane generation from low-maturity coals and shale source rocks at low temperatures (80–120°C) over 14–38 months. Organic Geochemistry, 2022, 155, 104224.

(7)   郑国东，赵文斌，陈志，胥旺，宋之光，李琦，徐胜，郭正府，马向贤，梁明亮，王云鹏. 中国地质源温室气体释放近十年研究概述. 矿物岩石地球化学通报, 2021, 40 (6), 1250-1271.

(8)   Xu W, Zheng GD, Martinelli G, Ma XX, Fan QH, Sajjad W, Chen Z. Mineralogical and geochemical characteristics of hydrocarbon-bleached rocks in Baiyanggou mud volcano, Xinjiang, NW China. Applied Geochemistry, 2020, 116, 104572.

(9)   Zhao XL, He BH, Wu HY, Zheng GD, Ma XX, Liang JJ, Li P, Fan QH. A comprehensive investigation of hazardous elements contamination in mining and smelting-impacted soil and sediments. Ecotoxicology and Environmental Safety, 2020, 192, 110320.

(10) Ma XX, Zheng GD, Xie DH, Liang ML, Martinelli G, Sajjad W, Xu W, Fan QH, Li LW, Du L, Zhao YD. Occurrence and origin of H₂S from volcanic reservoirs in the Santanghu Basin, NW China. Geofluids, 2019, 1279658.

(11) Sajjad W, Zheng GD, Rafiq M, Ma XX, Khan S, Xu W, Haq A, Ali B. Evaluation of the biotechnological potential of pure and mixture of indigenous iron-oxidizing bacteria to dissolve trace metals from Cu-Zn bearing ore. Geomicrobiology Journal, 2019, 36(8), 715-726.

(12) Sajjad W, Zheng GD, Ma XX, Rafiq M, Irfan M, Xu W, Ali B. Culture-dependent hunt and characterization of iron-oxidizing bacteria in Baiyin Copper Mine, China and their application in metals extraction. Journal of Basic Microbiology, 2019, 59, 323-336.

(13) He B, Fan QH, Zhao XL, Li P, Liang JJ, Ma XX, Zheng GD, Qiu JL. Lead isotopic fingerprinting as a tracer to identify the pollution sources of heavy metals in the Southeastern Zone of Baiyin, China. Science of the Total Environment, 2019, 660, 348-357.

(14) Ma XX, Zheng GD, Sajjad W, Xu W, Fan QH, Zheng JJ, Xia YQ. Influence of minerals and iron on natural gases generation during pyrolysis of type-III kerogen. Marine and Petroleum Geology, 2018, 89, 216-224.

(15) Zheng GD, Xu, Etiope G, Ma XX, Liang SY, Fan QH, Sajjad W, Li Y. Hydrocarbon seeps in petroliferous basins in China: a first inventory. Journal of Asia Earth Sciences, 2018, 151, 269-284.

(16) Sajjad W, Zheng GD, Zhang GS, Ma XX, Xu W, Khan S. Bioleaching of copper and zinc bearing ore by using consortia of indigenous iron-oxidizing bacteria. Extremophiles, 2018, 22, 851-863.

(17) Xu W, Zheng GD, Ma XX, Fortin D, Hilton D, Liang SY, Liang SY, Chen Z, Hu GY. Iron speciation of mud breccia from the Dushanzi mud volcano in the Xinjiang Uygur Autonomous Region, NW China. Acta Geologica Sinica, 2018, 92(6), 1685-1699.

(18) Zheng GD, Ma XX, Guo ZF, Hilton DR, Xu W, Fan QH. Gas geochemistry and methane emission from Dushanzi mud volcanoes in the southern Junggar Basin, NW China. Journal of Asia Earth Sciences, 2017, 149, 184-190.

(19) Li P, Ma XX, Li H, Li SC, Wu HY, Xu D, Zheng GD, Fan QH. Sorption mechanism of Th(IV) at iron oxyhydroxide (IOHO)/water interface: Batch, model and spectroscopic studies. Journal of Molecular Liquids 2017, 241, 478-485.

(20) Ma XX, Zheng JJ, Zheng GD, Xu W, Qian Y, Wang ZD, Wang XF, Xia YQ, Influence of pyrite on hydrocarbon generation during pyrolysis of type-III kerogen. Fuel, 2016, 167(3), 329-336.

(21) Ma XX, Zheng GD, Xu W, Fan QH, Wu YZ, Ye CL, Shozugawa K, Matsuo M. Iron speciation and mineral characterization of upper Jurassic reservoir rocks in the Minhe Basin, NW China. Hyperfine Interactions, 2016, 237, 77.

(22) Ma XX, Zheng GD, Liang SY, Xu W, Geochemical characteristics of absorbed gases of gouge from some faults in Daliushu Dam area, NW China. Geochemical Journal, 2015, 49(4): 413-419.

(23) 马向贤, 郑国东, 郭正府, Etiope, G., Fortin, D., 佐野有司. 准噶尔盆地南缘独山子泥火山温室气体排放通量. 科学通报, 2014, 59(32), 3190-3196.

(24) 马向贤，王华林，张志武，时丕龙，赵军，张海峰，宋振江. 2014. 青藏高原东缘三条断裂带断层泥中铁元素化学种的分布特征, 矿物岩石地球化学通报, 33(3), 348-354.

(25) 马向贤，郑建京，郑国东.含铁矿物对褐煤生烃演化的催化作用. 天然气地球科学, 2014, 25(7), 1065-1071.

(26) 吉利民，马向贤，夏燕青，邱军利. 黏土矿物甲烷吸附性能与微孔隙体积关系, 天然气地球科学, 2014, 25(1), 144-152.

(27) 马向贤，郑国东，梁收运，樊成意，王自翔，梁明亮. 地质甲烷对大气甲烷源与汇的贡献. 矿物岩石地球化学通报, 2012, 31(2), 141-147.

(28) 马向贤，郑国东，梁收运，魏丽娟，梁明亮. 黄铁矿风化作用及其工程地质意义. 岩石矿物学杂志, 2011, 30(6), 1132-1138.