attributes.tag: collection_date
attributes.value: 2023-12-20
attributes.tag: env_broad_scale
attributes.value: Soil
attributes.tag: sample_title
attributes.value: K-SWH8 (SAMC5968043)
attributes.tag: env_local_scale
attributes.value: River sediment
attributes.tag: ngdc_project_id
attributes.value: PRJCA047442
attributes.tag: depth
attributes.value: 10cm
attributes.tag: elev
attributes.value: 400m
attributes.tag: ngdc_release_date
attributes.value: 2025-10-07
attributes.tag: geo_loc_name
attributes.value: missing: data agreement established pre-2023
attributes.tag: ngdc_sample_id
attributes.value: SAMC5968043
attributes.tag: env_medium
attributes.value: River sediment
attributes.tag: lat_lon
attributes.value: missing
attributes.tag: sample_name
attributes.value: SAMC5968043_K-SWH8