Don't give up.

Like Tincow said, it can take a lot longer than 7 months to get a job, sadly.

Also, network, more. Bug professors about job opportunities and for letters of recommendation. See if there's geologist type meetings (chemical engineers have American Institute of Chemical Engineers local meetups, and there's more general engineering meetups as well.)

Finally - follow up the resumes you send (make sure to included custom cover letters as well). A call or email to the HR rep - or even better, whoever's in charge of the geologist department/hiring - to follow up definitely improves your chances. About a week or so after you send the resume.

That's all I can think of for now - but again, don't give up.

CR