在北极沿海永久冻土区，热岩礁泻湖代表了从淡水湖泊到海洋环境的过渡状态。淡水湖泊到海洋环境的过渡状态，但在其对温室气体产生和释放的作用方面很少受到关注。温室气体的产生和释放的作用很少受到关注。一个热卡岩泻湖的地球化学特征与两个热卡岩湖的地球化学特征进行了比较。与西伯利亚东北部Bykovsky半岛上的两个热岩溶湖进行了比较。这个数据集 包括pH值、主要阳离子和阴离子、碱度、盐度和溶解铁（铁和亚铁）。湖泊和泻湖沉积物的孔隙水的浓度；小塞子样品中CH4的浓度和稳定同位素特征。\n
沉积物芯的小塞子样品中CH4的浓度和稳定同位素特征；总碳(TC)、总有机碳(TOC)、总氮(TOC) 、总氮(TN)和总硫(TS)；以及一些生物标志物指数(例如：在湖泊和环礁上的生物标志物)。根据正构烷烃的浓度计算生物标志物指数（如CPI、Paq），以描述沉积物中有机物的来源。湖泊中有机物（OM）的来源。\n
数据集被编译成一个Excel文件，样本在行中，环境参数在列中。", "ds_source": "
在2017年4月的实地考察中，样品取自俄罗斯西伯利亚东北部拉普捷夫海Buor-Khaya湾勒拿河三角洲东南的Bykovsky半岛。从Golzovoye湖（LG）、Polar Fox泻湖（PFL）和Northern Polar Fox湖（LNPF）取回了三个岩芯（PG2420、PG2426和PG2423），从沉积物表面的钻探深度分别为5.2、5.4和6.1米。", "ds_process_way": "
在缺氧手套箱中使用液压机提取孔隙水样品，然后过滤至0.45微米的微孔膜。用WTW MultiLab 540探头（WTW.德国）测量pH值、 德国）。样品通过抑制离子色谱法分析所有主要阳离子和阴离子。碱度通过比色滴定法测量。孔隙水中的溶解铁（铁和亚铁）浓度通过光谱仪测量。孔隙水中的溶解铁（铁和亚铁）浓度是通过分光光度法测量的（Viollier等人，2000年），检测极限为0.25μ。检测极限为0.25μM。样品是在GFZ德国地球科学研究中心测量的。", "ds_quality": "", "ds_acq_start_time": "2017-04-01 00:00:00", "ds_acq_end_time": "2022-01-31 00:00:00", "ds_acq_place": "西伯利亚拜科夫斯基半岛", "ds_acq_lon_east": null, "ds_acq_lat_south": null, "ds_acq_lon_west": null, "ds_acq_lat_north": null, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 361205, "ds_files_count": 2, "ds_format": "", "ds_space_res": null, "ds_time_res": "", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "64176291-5a4e-4ddd-8929-07b6d0f0b5c0.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "52b7b79b-860c-49a5-9083-9a70cf8bed5a", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.45" ], "quality_level": 3, "publish_time": "2023-05-29 11:16:28", "last_updated": "2023-05-29 11:16:28", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.NCDC.NIEER.DB6685.2024", "i18n": { "en": { "title": "Geochemistry of sediments from Arctic thermokarst lakes and lagoons on the Bykovsky Peninsula, Siberia", "ds_format": "", "ds_source": "
Samples were taken from Bykovsky Peninsula, southeast of the Lena Delta in the Buor-Khaya Gulf of the Laptev Sea in northeastern Siberia, Russia, during the field expedition in April 2017. Three cores (PG2420, PG2426, and PG2423) were retrieved from Lake Golzovoye (LG), Polar Fox Lagoon (PFL) and Lake Northern Polar Fox (LNPF), with drilling depths from the sediment surface of 5.2, 5.4, and 6.1 m, respectively.", "ds_quality": "", "ds_ref_way": "", "ds_abstract": "
In coastal Arctic permafrost regions, thermokarst lagoons represent the transition state from a freshwater lacustrine to a marine environment, and receive little attention regarding their role for greenhouse gas production and release. The geochemical features of a thermokarst lagoon were compared with two thermokarst lakes on the Bykovsky Peninsula in northeastern Siberia. This data set includes pH, major cations and anions, alkalinity, salinity, and dissolved iron (ferric and ferrous) concentrations from porewater of lake and lagoon sediments; the concentration and stable isotopic.\n
signature of CH4 in small plug samples from the sediment cores; total carbon (TC), total organic carbon (TOC), total nitrogen (TN), and total sulfur (TS) measured from the bulk sediment; and several biomarker indices (e.g. CPI, Paq) were calculated based on n-alkane concentrations to characterize the origin of organic matter (OM) in the lakes.\n
The dataset was compiled into an excel file with samples in rows and environmental parameters in columns.
", "ds_time_res": "", "ds_acq_place": " the Bykovsky Peninsula, Siberia", "ds_space_res": "", "ds_projection": "", "ds_process_way": "Porewater samples were extracted using a hydraulic press in an anoxic glovebox and then filtered to 0.45 µm microporous membrane. pH was measured with a WTW MultiLab 540 probe (WTW, Germany). Samples were analyzed by suppressed ion chromatography for all major cations and anions. Alkalinity was measured by colorimetric titration. Dissolved iron (ferric and ferrous) concentrations in pore water were measured via spectrophotometry by the ferrozine method (Viollier et al. 2000), with a detection limit of 0.25 μM. Samples were measured at GFZ German Research Centre for Geosciences.", "ds_ref_instruction": "" } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "CC BY 4.0", "doi_reg_from": "reg_outside", "cstr_reg_from": "reg_outside", "doi_not_reg_reason": null, "cstr_not_reg_reason": null, "is_paper_in_submitting": false, "ds_topic_tags": [ "pH值", "阴阳离子", "碱度", "总氮", "总硫" ], "ds_subject_tags": [ "地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "西伯利亚拜科夫斯基半岛" ], "ds_time_tags": [ 2017, 2018, 2019, 2020, 2021, 2022 ], "ds_contributors": [ { "true_name": "杨思忠", "email": "syang@gfz-potsdam.de", "work_for": "冰冻圈科学国家重点实验室藏北高原冰冻圈特殊环境与灾害国家野外科学观测研究站", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "杨思忠", "email": "syang@gfz-potsdam.de", "work_for": "冰冻圈科学国家重点实验室藏北高原冰冻圈特殊环境与灾害国家野外科学观测研究站", "country": "中国" } ], "ds_managers": [ { "true_name": "杨思忠", "email": "syang@gfz-potsdam.de", "work_for": "冰冻圈科学国家重点实验室藏北高原冰冻圈特殊环境与灾害国家野外科学观测研究站", "country": "中国" } ], "category": "冻土" }