Yes it is.
Geochemistry
This is geochemistry.
Well if you read in between the lines it depends on geology and chemistry.
Biochemistry: the chemistry of life. Geobiology: Distributions of organisms related to geology. Geochemistry can determine types of organisms. Organisms have specific biochemistries. Biochemistry can alter geochemistry.
geochemistry is the study of the chemical structure of the earth
Geology, meteorology, astronomy, oceanology, and environmental science
Mohammed Ikramuddin has written: 'Geochemistry and geochronology of Precambrian dikes from Mysore State, India' -- subject(s): Dikes (Geology), Geochemistry, Geology, Stratigraphic, Stratigraphic Geology
its geology
The study of chemistry of the elements of earth is called geochemistry. Geochemistry is studied by very less people.
A. A. Beus has written: 'Geochemistry of the lithosphere' -- subject(s): Geochemistry, Analysis, Rocks 'Geology of Tungsten'
B. G. Hoal has written: 'The geology and geochemistry of the Proterozoic Awasib Mountain terrain, southern Namibia' -- subject(s): Awasib Mountains Region, Geochemistry, Geology, Namibia, Stratigraphic Geology
P. K. Banerjee has written: 'Geology and geochemistry of the Sukinda ultramafic field, Cuttack District, Orissa' -- subject(s): Geochemistry, Geology, Ultrabasic Rocks