Pasadena,
CA,
United States
Type
Private
Degrees offered
Bachelor's Degree
PhD in Geochemistry - Extraterrestrial Geochemistry/Cosmochemistry in Pasadena United States | California Institute of Technology
California Institute of Technology
|
Pasadena United States
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for more information
Qualification
Doctor of Philosophy
Languages
English
Delivery Mode
On-Campus
Tuition (2025)
USD
58,479
Attendance
Full-time
Full-time Duration
36 months
Geochemistry examines the chemical makeup and structural changes of Earth and its various components, such as the atmosphere, oceans, crust, mantle, and core, along with celestial bodies like meteorites, comets, planets, the sun, and distant stars. This field focuses on how elements move and are distributed across Earth and its atmospheric layers. Originally a descriptive discipline, geochemistry has grown to emphasize understanding the underlying processes driving its findings. Modern geochemistry branches into specialized areas like aqueous geochemistry, cosmochemistry, inorganic geochemistry, isotope geochemistry, organic geochemistry, and trace-element geochemistry. Because chemical reactions play a key role in geological phenomena, geochemical insights help explain processes across broader earth sciences. At Caltech GPS, geochemical research since 1952 has explored elemental distribution in Earth and the solar system, developed techniques for dating planetary events, analyzed the composition of terrestrial and extraterrestrial materials, and investigated chemical interactions within Earth's interior, surface, and beyond.
Destination of Study
Subjects of Study
Language Requirements
English
IELTS 6.0
Qualification Requirements
Applicants must have completed a bachelor's degree or the equivalent before beginning graduate study. Applicants who already hold a Ph.D. degree will not be considered for a second Ph.D. degree. Transcripts from each college or university attended, three letters of recommendation, a CV, and the applicant's statement of purpose are required components of the application and are carefully and equally weighed during the evaluation process.
There is no minimum requirement for the English proficiency exams. However, all new students who have had limited instruction in English will participate in a one-on-one English evaluation with the ESL instructor during Orientation and may be asked to enroll in an English as a Second Language (ESL) course.
There is no minimum requirement for the English proficiency exams. However, all new students who have had limited instruction in English will participate in a one-on-one English evaluation with the ESL instructor during Orientation and may be asked to enroll in an English as a Second Language (ESL) course.
Tuition
USD
58,479