Department of Earth and Environmental Sciences

Staff and Teaching Assistants

Department Staff

Sieumuoi Delcroix
Administrative Support Coordinator
staing@mail.fresnostate.edu
559.278.5279

Jonathan M Powell
Instructional Support Technician
jmp53089@mail.fresnostate.edu
559.278.2915

Teaching Assistants

Name Email Office Fall 2026 Office Hours

George Allen

georgeallen@mail.fresnostate.edu S2 118A

Th: 2:00pm-3:00pm (In-Person)  F: 10:00am-11:00am (In-Person)

Miranda Flint

mrflint@mail.fresnostate.edu

S2 118A TuTh: 10:30am-12:00pm (In-Person)
Ashley Gonzales

agonzales018@mail.fresnostate.edu

S2 118A

MTh: 5:00pm-6:00pm (Online)  W: 3:00pm-4:00pm (In-Person)

Sergio Medina Diaz smedina12@mail.fresnostate.edu S2 118A

M: 2:00pm-4:00pm (In-Person)

Samantha Mendonca sgmendonca618@mail.fresnostate.edu S2 118A TuTh: 1:00pm-2:00pm (In-Person)