本数据集包括塔克拉玛干沙漠表土表砂样品的经纬度、样品描述、重矿物（锆石、磷灰石、金红石、矽线石、十字石、榍石、绿帘石、电气石、石榴子石、白钛石、角闪石、透闪石、钛铁矿、赤褐铁矿、磁铁矿等）的百分含量，样品经破碎、重液分选和磁选后，利用双目显微镜、高频介电矿物分选仪、带式矿物电磁分选仪，依据DZ/T0130.9-2006《地质矿产实验室测试质量管理规范》对其进行鉴定和含量估算共计70个样品，210条记录。
", "ds_source": "在野外通过对塔克拉玛干沙漠不同区域的地貌单元采集相应的样品。在实验室对样品进行前处理，并运用专业仪器挑选统计，以此来获得最终数据。本数据集适用于沙漠土壤性质以及环境状况的研究和调查。
", "ds_process_way": "\"在野外按照一定空间距离（约30-50 km）在沙漠不同区域地貌单元（洪积扇、河流沉积、河漫滩、芦苇湿地、草地、胡杨林、灌丛沙丘、流动沙丘和人工草方格）地表采集100 g左右粉末样品、编号、记录经纬度和样品所处地貌位置。\n1.样品的制备\n称取约100g左右样品，将样品用机器研磨时期破碎、然后用2.72 的重液进行淘洗。用强磁铁对淘洗风干的样品进行磁选去掉磁性矿物。
\n2.样品鉴定\n利用双目显微镜、高频介电矿物分选仪、带式矿物电磁分选仪，依据DZ/T0130.9-2006《地质矿产实验室测试质量管理规范》对地表样品进行矿物鉴定和含量估算。\n\"
本数据集所有样品为塔克拉玛干沙漠地表样品。样品的矿物分析利用双目显微镜、高频介电矿物分选仪、带式矿物电磁分选仪，依据DZ/T0130.9-2006《地质矿产实验室测试质量管理规范》对其进行鉴定和含量估算，以上实验均在中国科学院新疆生态与地理研究所分析完成。
", "ds_acq_start_time": null, "ds_acq_end_time": null, "ds_acq_place": "塔克拉玛干沙漠", "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": "apply-access", "ds_total_size": 467011, "ds_files_count": 4, "ds_format": "电子表格", "ds_space_res": null, "ds_time_res": "", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "cc8114b1-a681-48cf-8b8c-27e88d591b4f.jpg", "ds_thumb_from": 2, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "a5877b42-96ea-4f13-af7e-246f355413d6", "doi_value": "", "subject_codes": [ "170.50" ], "quality_level": 1, "publish_time": "2024-09-25 12:33:24", "first_publish_time": "2024-09-25 12:33:24", "last_updated": "2025-03-07 15:37:12", "protected": false, "protected_to": null, "lang": "zh", "cstr": "33110.11.XIEG.XJSEDATA.2022.00009167", "license": null, "extra": null, "files_shape": [ { "name": "实体数据", "size": null, "is_dir": true }, { "name": "附件", "size": null, "is_dir": true } ], "features": null, "data_level": 0, "i18n": { "en": { "title": "Mineral composition dataset of topsoil samples from Taklimakan Desert (2023)", "ds_abstract": "This dataset includes latitude and longitude, sample description, heavy minerals, topsoil sand samples of the Taklimakan Desert (Zircon, apatite, rutile, sillimanite, tourmaline, garnet, ene, tremolite, ilmenite, hematite, magnetite, etc.), after crushing, heavy liquid sorting and magnetic separation, using a binocular microscope, a high-frequency dielectric mineral sorting instrument, and a belt mineral electromagnetic sorting instrument, According to DZ/T0130.9-2006 \"Geological and Mineral Laboratory Testing Quality Management Code\", a total of 70 samples and 210 records were identified and their content estimated.
", "ds_source": "In the field, corresponding samples were collected from geomorphological units in different areas of the Taklimakan Desert. Samples are pre-processed in the laboratory and professional instruments are used to select and statistics to obtain the final data. This dataset is suitable for the study and investigation of desert soil properties and environmental conditions.
", "ds_process_way": "\"In the field, a powder sample of about 100 g was collected on the surface of different desert geomorphological units (alluvial fans, river deposits, floodplains, reed wetlands, grassland, Populus euphratica forest, shrub sand dunes, mobile sand dunes and artificial grass grids) at a certain spatial distance (about 30-50 km), and the latitude and longitude and the geomorphological location of the sample were recorded.\n1. sample preparation\nWeigh about 100g of a sample, break the sample with a machine grinding period, and then elutriate it with a weight solution of 2.72. The washed and air-dried samples were magnetically separated with a strong magnet to remove magnetic minerals.
\n2. sample identification\nUsing a binocular microscope, a high-frequency dielectric mineral sorter, and a belt type electromagnetic mineral sorter, mineral identification and content estimation of surface samples were carried out in accordance with DZ/T0130.9-2006 \"Code for Quality Management of Geological and Mineral Laboratory Testing\".\n\"
All samples in this dataset are surface samples from the Taklimakan Desert. The mineral analysis of the samples uses a binocular microscope, a high-frequency dielectric mineral sorter, and a belt type mineral electromagnetic sorter to identify and estimate the content according to DZ/T0130.9-2006 \"Quality Management Standards for Testing in Geology and Mineral Laboratories\". The above experiments were analyzed and completed at the Xinjiang Institute of Ecology and Geography, China Academy of Sciences.
", "ds_acq_place": "taklimakan desert", "ds_format": "spreadsheet" } }, "license_type": null, "doi_reg_from": "reg_local", "cstr_reg_from": "reg_local", "doi_not_reg_reason": null, "cstr_not_reg_reason": null, "is_paper_in_submitting": false, "ds_topic_tags": [ "重矿物" ], "ds_subject_tags": [ "地质学" ], "ds_class_tags": [], "ds_locus_tags": [ "塔克拉玛干沙漠" ], "ds_time_tags": [ 2023 ], "ds_contributors": [ "高鑫", "周杰", "赵永成" ], "ds_meta_authors": [ "周杰" ], "ds_managers": [ "周杰" ], "category": "沙漠与荒漠化" }