JAMSKA EKSPLOATACIJA BOKSITA U ZAPADNIM DINARIDIMA KLJUČNE ČINJENICE I KOMENTARI

After a short information about the causes both for the deficiency of papers on bauxite underground mines and for the development of such mines, a concise sketch of the geologic structures of the bauxite regions in the Western Dinarids, inclusive the chemical composition of the bauxites, is given. The main portion of the paper is devoted to the description of the following bauxitic regions: Drniš (with the mines Kalun and Kumanovo), Obrovac (Dračevac, Ćukovac—Grižinice and Krš), Mostar (Orašnica, Tribošić, Trobukva, Dabrica), Jajce (Poljane, Crvene Stijene), Bosanska Krupa (Risovac), and Sinj (Visoka). Presented are the »bauxitic« history of the region as well as its mining characteristics, from the mode of opening to the used mining methods, with their adventages and disadvantages. Comments are made, but no conclusions drawn; the future remains open.Nakon kratke informacije kako o razlozima za nedostatak objavljenih radova o boksitnim podzemnim radovima i za otvaranje takvih rudnika, dat je sažet prikaz geološke građe boksitnih područja u zapadnim Dinaridima, uključivo kemijskog sastava boksita. Glavni dio studije posvećen je opisu sljedećih boksitnih područja: Drniš (s jamama Kalun i Kumanovo), Obrovac (Dračevac, Ćukovac—Grižnice i Krš), Mostar (Orašnica, Tribošić, Trobukva i Dabrica), Jajce (Poljane i Crvene Stijene), Bosanska Krupa (Risovac), i Sinj (Visoka). Izneseni su i »bok-sitaški« historijat pojedinog područja kao i njegove rudarske karakteristike, počev od načina otvaranja jama do otkopnih metoda, s njihovim prednostima i nedostacima. Dati su neki komentari, ali zaključka nema; budućnost ostaje otvorena

ČETIRI STOLJEĆA RUDARSTVA BOKSITA

In the paper the results of many years of archival and field investigations in the history of bauxite mining of the three authors are presented. It was established that in Istria in the valley of the river Mirna beneath the Castle of Sovinjak bauxite was exploited already 400 years ago, and that 1808 about this ore the first scientific account was published. Accordingly, the statements in the professional literature that the first bauxite mine opened 1873 in the French Provence and that the bauxite ore for the first time was scientifically described 1821 have to be revised. About this necessary revision here the essential proofs are produced.U radu se iznose rezultati višegodišnjeg arhivskog i terenskog istraživanja historije boksitnog rudarstva trojice autora. Utvrđeno je da se u Istri u dolini rijeke Mirne pod Sovinjakom boksit otkopavao još prije 400 godina te da je o toj rudi 1808 objavljen prvi naučni prikaz. Prema tome, treba revidirati podatke u stručnoj literaturi o tome da je prvi rudnik boksita otvoren 1873 u francuskoj Provansi i da je ruda boksit prvi put naučno opisana 1821. O toj potrebnoj reviziji prioriteta izneseni su ovdje neophodni dokazi

FOUR CENTURIES OF BAUXITE MINING

In the paper the results of many years of archival and field investigations in the history of bauxite mining of the three authors are presented. It was established that in Istria in the valley of the river Mirna beneath the Castle of Sovinjak bauxite was exploited already 400 years ago, and that 1808 about this ore the first scientific account was published. Accordingly, the statements in the professional literature that the first bauxite mine opened 1873 in the French Provence and that the bauxite ore for the first time was scientifically described 1821 have to be revised. About this necessary revision here the essential proofs are produced

UNDERGROUND BAUXITE EXPLOITATION IN THE WESTERN DINARIDS ESSENTIAL FACTS AND COMMENTS

After a short information about the causes both for the deficiency of papers on bauxite underground mines and for the development of such mines, a concise sketch of the geologic structures of the bauxite regions in the Western Dinarids, inclusive the chemical composition of the bauxites, is given. The main portion of the paper is devoted to the description of the following bauxitic regions: Drniš (with the mines Kalun and Kumanovo), Obrovac (Dračevac, Ćukovac—Grižinice and Krš), Mostar (Orašnica, Tribošić, Trobukva, Dabrica), Jajce (Poljane, Crvene Stijene), Bosanska Krupa (Risovac), and Sinj (Visoka). Presented are the »bauxitic« history of the region as well as its mining characteristics, from the mode of opening to the used mining methods, with their adventages and disadvantages. Comments are made, but no conclusions drawn; the future remains open