Search | Korea Science

Geology and Metallic Mineral Resources of Sinaola State in Mexico (멕시코 시나올라주의 지질 및 금속광물자원)

Nam, Hyeong-Tae;Heo, Chul-Ho
- Economic and Environmental Geology
- /
- v.46 no.3
- /
- pp.257-266
- /
- 2013
The geology of Sinaola state consists of Precambrian metamorphic rocks(Sonobari Complex), two Paleozoic units(lower non-differentiated metamorphic rocks and upper Carboniferous sedimentary rocks), five Mesozoic units(metavolcanic, clastic, and calcareous rocks), Cenozoic volcanic rocks, and Quaternary clastic sediments and volcanic flows. The Sinaola state is potentially rich in metallic mineral resources with lower degree of non-metallic mineral resources. They are related to a variety of geological environments and are mainly physiographically located on the Sierra Madre Occidental. Mainly known mineral deposits are of gold and silver followed by zinc, lead, copper and some iron. The state also has deposits of molybdenum, tungsten and bismuth that have been occasionally exploited. There is a reference of nickel and cobalt mineralization, but these deposits have been exploited only at a small scale.
https://doi.org/10.9719/EEG.2013.46.3.257 인용 PDF KSCI

Growth Performance and Nutrient Composition in the White-spotted Flower Chafer, Protaetia brevitarsis (Coleoptera: Scarabaeidae) Fed Agricultural By-product, Soybean Curd Cake (비지박 첨가 먹이원 급여에 따른 흰점박이꽃무지 유충의 생육과 영양성분 변화)

Song, Myung-Ha;Han, Moon-Hee;Lee, Seokhyun;Kim, Eun-Sun;Park, Kwan-Ho;Kim, Won-Tae;Choi, Ji-Young
- Journal of Life Science
- /
- v.27 no.10
- /
- pp.1185-1190
- /
- 2017
Insects are gaining recognition as an alternative source of protein. As a result, more and more domestic farms have begun mass rearing of edible insects. In order to produce high quality insects, studies on the development of safe and nutritious feed sources are needed. Given the cost of rearing insects, agricultural and industrial by-products are good sources for feed. The efficient utilization of these by-products can help in reducing the cost of production and preventing environmental pollution. In the current study, Citrus unshiu peel (CP), soybean curd cake (SCC), soybean oil meal (SOM), and brewers dried grain (BDG) were investigated for their effects on larval growth and development of Protaetia brevitarsis. Interestingly, the feed with 10% SCC increased larval weight by 3.5 times. For the larval period, the group of 10% SCC was significantly shorter than the control. Furthermore, minerals such as Zn, Ca, K, Mg, Na, and P were recorded to be high in 10% SCC. A total of 17 amino acids were present in 10% SCC, of which tyrosine and arginine were predominant. The heavy metal contents were very small amounts or not detected in any of the investigated groups. These findings provided a scientific basis for the utilization of soybean curd cake as a nutritional feed source to promote larval growth and produce quality insects.
https://doi.org/10.5352/JLS.2017.27.10.1185 인용 PDF KSCI