Comme tous les êtres vivants, depuis qu’il existe, l’Homme doit non seulement assurer sa nourriture, condition essentielle de sa maintenance, mais il doit aussi faire face aux conséquences des manifestations internes et externes de son environnement. Ces interactions entre l’Homme et son cadre de vie représentent une préoccupation majeure permanente, puisqu’elles conditionnent notre vie et l’évolution biologique de tous les êtres vivants.

Ushbu o‘quv qo‘llanma texnika yo‘nalishidagi oliy o‘quv yurtlarining (60721500– “Konchilik ishi”, 60722400-“Noyob va radioaktiv metall rudalarini qazib olish va qayta ishlash texnikasi va texnologiyasi” ta`lim yo‘nalishlari talabalariga geologik bilimlarning boshlang‘ich nazariy bilimlarni berishga mo‘ljallangan. Unda Respublikamizning konchilik sanoatining asosiy o‘zagi bo‘lgan minerallarni, tog‘ jinslarni, foydali qazilmalarni, ma`danlarni hosil bo‘lish jarayonlarini, yerning ichki tuzilishi, radioaktivligi va issiqlik rejimi, yerning tuzilishi va unda ro‘y beradigan endogen va ekzogen jarayonlar, yer osti suvlari, yer osti suvlarining hosil bo‘lishi, tabaqalanishi, yer osti suvlaridan xalq xo‘jaligining turli sohalarida ishlatilishi, yer osti suvlarining kon maydoniga ta’sirini va oldini olish uchun ko‘riladigan chora tadbirlar, foydali qazilmalarning hosil bo‘lish jarayonlari, turlari, sanoatda qo‘llanilishi haqida batafsil ma`lumotlar keltirilgan. <...>

Porphyry-type deposits range from Sn or W-(Mo), through Mo with negligible Cu, to Cu deposits with variably associated Au and/or Mo (Seedorff et al., 2005). Most deposits occur in provinces that are associated with Phanerozoic orogenic belts related to convergent plate boundaries (Fig. 1.1).