The Calaveritas quadrangle is in the western foothills of the Sierra Nevada, east of the Mother Lode gold belt. Most of the quadrangle is underlain by a strongly de• formed bedrock complex that is locally covered by small deposits of undeformed stream gravels and rhyolite tuff.
The bedrock complex consists of met…
geochemistry indicated several copper values of grea't'er than 1000 ppm. where the eastern cr o ss l Lne of the soil grid is still open to the ea s t . Follow-up geological work in Ligi was based on the above date focussed attention on Ligi Stream and its tributaries. were started on February 12 and lasted to Harch 26, 1974.…
Although the Van Bemmelen (1949) Geology of Indonesia book is generally viewed as the most significant textbook on the geology of Indonesia, its tectonic interpretations are outdated (and were actually already controversial at the time of publication}.
The pioneering book and maps of Warren Hamilton (1979) 'Tectonics of th…
This chapter Ill of the Bibliography 7.0 contains 297 pages with >2440 titles on the geology of Java, Madura aid the Java Sea. It is subdivided into four areas/ topics, 111.1- 111.4. The introduction to this chapter is somewhat rudimentary, and omits many aspects of Java geology. For more detail see the recent book by P…
This section X.1 of Bibliography 7.0 mainly contains 546 papers on the taxonomy of modern or sub-recent microfaunas and microfloras as well as papers on their distribution in Recent sediments of SE Asia. For a more extensive introduction see Van Gorsel, Lunt and Mor1y (2014, Bertia Sedimentologi 29).
An understanding of modem…
Active strike-slip tectonics and block rotations
After the Middle Miocene collision of the Bangai-Sula microcontinent with East Sulawesi, the present-day • West-ward convergence of the Pacific Plate relative to the Eurasian Plate (Sundaland) is accommodated in Sulawesi by:
1. movements along major active sinistral …
During the early part of August until 7th 1 was in Bangka. We had Intended to leave on 3rd August, but the Garuda Flight scheduled for that day was cancelled, so i though it would be a good opportunity to view the terrain in Sumatera, and on 7th Agustust crossed by small boat to Palembang where we took a train to pandjang and crossed to djawa where …
Kebijakan pengelolaan sumber daya geologi pada dasamya dapat dibagi menjadi dua bidang pertama di bidang manajemen sumber daya geologi dan kedua kebijakan di bidang investasi atau penanaman modal dalam usaha pertambangan. Kebijakan di bidang manajemen sumber daya geologi antara lain mengenai inventarisasi dan eksplorasi, p…
Banyak orang beranggapan bahwa bahan galian golongan C hanya berperan kecil dalam pembangunan nasional. Anggapan ini sebenarnya tidak tepat, sebab bahan galian golongan C berperan penting dalam kehidupan sehari-hari. Se j a~~ bangun tidur, bahkan selama tidurpun orang tidak dapat terlepas dari peralatan atau keperluan lain y…