{
    "created": "2024-09-19 12:23:34",
    "updated": "2026-05-09 13:22:27",
    "id": "cc8114b1-a681-48cf-8b8c-27e88d591b4f",
    "version": 5,
    "ds_topic": null,
    "title_cn": "塔克拉玛干沙漠表土样品矿物组成数据集（2023年）",
    "title_en": "",
    "ds_abstract": "<p>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。</p>",
    "ds_source": "<p>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。</p>",
    "ds_process_way": "<p>\"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。 <br />\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\"</p>",
    "ds_quality": "<p>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。</p>",
    "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": "离线申请",
    "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,
    "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"
}