https://cdn.earthdata.nasa.gov/conduit/upload/5182/KeywordsCommunityGuide_Baseline_v1_SIGNED_FINAL.pdf
23.6
2026-03-19T10:41:57.720Z
https://gcmd.earthdata.nasa.gov/KeywordViewer/scheme/sciencekeywords/906e647b-2683-4ae7-9986-1aea15582b52
GEOCHEMISTRY
Date=2013-02-18 User Id=tbs1979 Entity=NarrowerRelation Operation=DELETE
User Note=Move Concepts
System Note=delete narrower relation
Old Value=GEOCHEMISTRY [906e647b-2683-4ae7-9986-1aea15582b52,61439] - CARBONATE FORMATION [2bff6b6c-2b9d-4c83-931d-d8459d2e4745,82327]
Date=2013-02-18 User Id=tbs1979 Entity=NarrowerRelation Operation=DELETE
User Note=Move Concepts
System Note=delete narrower relation
Old Value=GEOCHEMISTRY [906e647b-2683-4ae7-9986-1aea15582b52,61439] - MINERAL DISSOLUTION [524cbe78-9c1f-4ef3-8aa9-0481476c253e,82333]
Date=2013-03-07 User Id=tbs1979 Entity=NarrowerRelation Operation=DELETE
User Note=Move Concepts
System Note=delete narrower relation
Old Value=GEOCHEMISTRY [906e647b-2683-4ae7-9986-1aea15582b52,61439] - MINOR ELEMENTS [63cf1bca-72c7-4f5e-8018-3d22befa7147,61735]
Date=2013-02-18 User Id=tbs1979 Entity=NarrowerRelation Operation=DELETE
User Note=Move Concepts
System Note=delete narrower relation
Old Value=GEOCHEMISTRY [906e647b-2683-4ae7-9986-1aea15582b52,61439] - OXIDATION/REDUCTION [9c2f3bee-4629-4607-9962-12fe919594a0,64119]
Date=2013-02-18 User Id=tbs1979 Entity=NarrowerRelation Operation=DELETE
User Note=Move Concepts
System Note=delete narrower relation
Old Value=GEOCHEMISTRY [906e647b-2683-4ae7-9986-1aea15582b52,61439] - HYDRATION [2b1f870b-c679-4b6d-b02e-3eb005f0648d,64071]
Date=2013-02-18 User Id=tbs1979 Entity=NarrowerRelation Operation=DELETE
User Note=Move Concepts
System Note=delete narrower relation
Old Value=GEOCHEMISTRY [906e647b-2683-4ae7-9986-1aea15582b52,61439] - MARINE GEOCHEMICAL PROCESSES [1dd9be28-df7b-434f-bea1-5b171d09312b,82341]
Date=2013-02-18 User Id=tbs1979 Entity=NarrowerRelation Operation=DELETE
User Note=Move Concepts
System Note=delete narrower relation
Old Value=GEOCHEMISTRY [906e647b-2683-4ae7-9986-1aea15582b52,61439] - ION EXCHANGE [ccbf4ef8-955b-4337-a45b-95affc360173,64113]
Date=2013-02-18 User Id=tbs1979 Entity=NarrowerRelation Operation=INSERT
User Note=Insert Concept
System Note=add narrower relation
New Value=GEOCHEMISTRY [906e647b-2683-4ae7-9986-1aea15582b52,61439] - DECOMPOSITION [d53f199e-938c-42ec-a74f-4806f3809fdc,82329]
Date=2013-02-18 User Id=tbs1979 Entity=NarrowerRelation Operation=INSERT
User Note=Insert Concept
System Note=add narrower relation
New Value=GEOCHEMISTRY [906e647b-2683-4ae7-9986-1aea15582b52,61439] - GEOCHEMICAL PROPERTIES [048df94e-841d-4f4d-a5c5-6683d1d07aa6,82357]
Date=2013-02-18 User Id=tbs1979 Entity=NarrowerRelation Operation=DELETE
User Note=Move Concepts
System Note=delete narrower relation
Old Value=GEOCHEMISTRY [906e647b-2683-4ae7-9986-1aea15582b52,61439] - CHEMICAL FIXATION [84b29fbe-8200-4d21-a1a3-fe84fa4cb132,63187]
Date=2013-02-18 User Id=tbs1979 Entity=NarrowerRelation Operation=DELETE
User Note=Move Concepts
System Note=delete narrower relation
Old Value=GEOCHEMISTRY [906e647b-2683-4ae7-9986-1aea15582b52,61439] - BIODEGRATION [3e934184-42bd-45ff-b9c1-5c5321fd066f,82331]
Date=2013-02-18 User Id=tbs1979 Entity=NarrowerRelation Operation=INSERT
User Note=Insert Concept
System Note=add narrower relation
New Value=GEOCHEMISTRY [906e647b-2683-4ae7-9986-1aea15582b52,61439] - MARINE GEOCHEMICAL PROCESSES [1dd9be28-df7b-434f-bea1-5b171d09312b,82341]
Date=2013-03-22 User Id=tbs1979 Entity=Definition Operation=UPDATE Field=text
System Note=update Definition
Old Value=Pertaining to the study of the chemical composition of the various phases of
the earth, and the physical and chemical processes which have produced the
observed distribution of the elements and the nuclides in these phases.
New Value=Pertaining to the study of the chemical composition of the various phases of the earth, and the physical and chemical processes which have produced the observed distribution of the elements and the nuclides in these phases.
Date=2013-02-18 User Id=tbs1979 Entity=NarrowerRelation Operation=INSERT
User Note=Insert Concept
System Note=add narrower relation
New Value=GEOCHEMISTRY [906e647b-2683-4ae7-9986-1aea15582b52,61439] - CARBONATE FORMATION [2bff6b6c-2b9d-4c83-931d-d8459d2e4745,82327]
Date=2013-03-22 User Id=tbs1979 Entity=Definition Operation=UPDATE Field=reference
System Note=update Definition
Old Value=Adapted from: <i>Dictionary of Geology & Mineralogy</i>, New York:McGraw-Hill,
Inc. 1997.
New Value=Dictionary of Geology & Mineralogy
Date=2013-03-07 User Id=tbs1979 Entity=NarrowerRelation Operation=DELETE
User Note=Move Concepts
System Note=delete narrower relation
Old Value=GEOCHEMISTRY [906e647b-2683-4ae7-9986-1aea15582b52,61439] - TRACE ELEMENTS [c3c898d7-14db-4536-bd86-f8f222167195,64121]
Date=2013-02-18 User Id=tbs1979 Entity=NarrowerRelation Operation=DELETE
User Note=Move Concepts
System Note=delete narrower relation
Old Value=GEOCHEMISTRY [906e647b-2683-4ae7-9986-1aea15582b52,61439] - DECOMPOSITION [d53f199e-938c-42ec-a74f-4806f3809fdc,82329]
Date=2013-02-18 User Id=tbs1979 Entity=NarrowerRelation Operation=DELETE
User Note=Move Concepts
System Note=delete narrower relation
Old Value=GEOCHEMISTRY [906e647b-2683-4ae7-9986-1aea15582b52,61439] - ISOTOPES [441ce068-91f2-4412-8893-c0096d8f9079,64115]
Date=2013-02-18 User Id=tbs1979 Entity=NarrowerRelation Operation=INSERT
User Note=Insert Concept
System Note=add narrower relation
New Value=GEOCHEMISTRY [906e647b-2683-4ae7-9986-1aea15582b52,61439] - BIODEGRATION [3e934184-42bd-45ff-b9c1-5c5321fd066f,82331]
Date=2013-03-07 User Id=tbs1979 Entity=NarrowerRelation Operation=DELETE
User Note=Move Concepts
System Note=delete narrower relation
Old Value=GEOCHEMISTRY [906e647b-2683-4ae7-9986-1aea15582b52,61439] - MAJOR ELEMENTS [2440389a-d0d9-445a-9dce-908900f0c3a7,64117]
Date=2013-02-18 User Id=tbs1979 Entity=NarrowerRelation Operation=INSERT
User Note=Insert Concept
System Note=add narrower relation
New Value=GEOCHEMISTRY [906e647b-2683-4ae7-9986-1aea15582b52,61439] - GEOCHEMICAL PROCESSES [e6fb1b81-8ffc-486f-b1a1-2f292af8cee6,82335]
Date=2013-02-18 User Id=tbs1979 Entity=NarrowerRelation Operation=INSERT
User Note=Insert Concept
System Note=add narrower relation
New Value=GEOCHEMISTRY [906e647b-2683-4ae7-9986-1aea15582b52,61439] - MINERAL DISSOLUTION [524cbe78-9c1f-4ef3-8aa9-0481476c253e,82333]
Date=2013-02-18 User Id=tbs1979 Entity=NarrowerRelation Operation=DELETE
User Note=Move Concepts
System Note=delete narrower relation
Old Value=GEOCHEMISTRY [906e647b-2683-4ae7-9986-1aea15582b52,61439] - CHEMICAL WEATHERING [7e140a1e-385d-4dd3-8b08-6239b082e35e,63605]
Pertaining to the study of the chemical composition of the various phases of the earth, and the physical and chemical processes which have produced the observed distribution of the elements and the nuclides in these phases.
2013-03-22 09:03:27.0