Petrofizika (az yun. retros — sang va …fizika), yak sohai ilmi geologiya, ki khosiyatshoi fizikii jinshoi kuhiro dar aloqamandi bo tarkibi minerali, struktura va tarikhi paydoishi onho tadqiq mekunad. Mafhumi «Petrofizika»-ro bori avval geofiziki RDG F. Fryolikh dar ilm jori kardaast (1953). Petrofizika khosiyati jinshoi kuhiro bevosita dar sahro bo yorii usulhoi petrografi, tadqiqoti geofiziki va kosmofiziki, inchunin bo usulhoi laboratori meomuzad. Jinshoi kuhie, ki dar asosi tadqiqoti sahroi ba dast ovarda meshavand, az rui khususiyathoyashon tasnif karda shuda, natijahoi on dar kharitahoi petrofiziki tasvir meyoband.
Petrofizika malumotro oid ba khosiyathoi jinshoi kuhii muayyan istifoda burda, sharoithoi konkretii termodinamikii paydoishi onhoro muqarrar mekunad va baroi modelonii fizikiyu mekhaniki (omukhtani khosiyati jinshoi kuhi hangomi fishor va harorati baland) imkoniyat faroham meovarad. Petrofizika makhsusan solhoi 60—70 ba munosibati zarurati omukhtani tabaqahoi chuquri qishri Zamin, ki ba muayyan namudaii manbahoi madan, paydoishi jinshoi kuhi va hodisahoi seysmi ravona karda shuda budand, ahamiyati kalon paydo kard.
Ad.: Belikov B. P., Aleksandrov K. S., R i j o v a T. V., Uprugie svoystva porodoobrazuyushikh mineralov ya gornikh porod, M., 1970; Fiziko-mekhanicheskie svoystva gornikh porod i mineralov pri visokikh davleniyakh ya temperaturakh, M., 1974.