A program of geologic mapping and mineral investigation inColombia was undertaken cooperatively by the Colombian Institute Nacional de Investigaciones Geologioc-Mineras (formerly known as che

The Sierra Nevada de Santa Marta on the north coast of Colombia is an isolated triangular mountain area that reaches altitudes of t > almost 19,000 feet. The exceedingly complex geology is shown on the 1:200,000 geologic map.Despite five major periods of granitic intrusion, three major periods of metamorphism, and extensive volcanic eruptions, metallic i k deposits are small and widely scattered. Sulfide deposits of significant economic value appear to be absent. Many small copper deposits of chalcocite, cuprite, malachite, and azurite are found in epidotized rock in Mesozoic redbeds and intercalated volcanic rocks, but their economic potential is very small. Deposits of other common base metals appear to be absent. The most important metallic deposits may prove to be unusual bimineralic,apatite-ilmenite deposits associated with gneissic anorthosite. The known magnetite deposits are too small to be exploited commercially. Primary gold deposits have not been identified and the placer deposits are uneconomic and very small.The largest and most important deposits are nonmetallic. Enormous reserves of limestone are suitable for cement manufacture and some high-purity limestone is suitable for the most exacting chemical uses.Small deposits of talc-tremolite could be exploited locally for ceramic

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Considering that the subject of worship is of very unique significance to the Seventh-day Adventist church, the writer proposed to determine with respect to the Seventh-day Adventist churches in Montemorelos, Mexico, the following: 1. The attitudes of the church members toward public corporate worship. 2. The church members' understanding and awareness of the value of the various components in public corporate worship. 3. The church members' ability to correct erroneous concepts concerning public corporate worship. The study was an important undertaking for the following reasons: 1. There is a dearth of worship material in the Spanish language. 2. It would give the writer, teacher of the worship class at Montemorelos University , a clearer understanding o f the church members' concepts of corporate worship. 3. It would provide an opportunity for the churchgoer to increase his awareness and understanding o f the various components of public corporate worship. 4. I t would seek to develop a teaching model in public corporate worship for theology students a t Montemorelos University . The attitudes and understanding o f worship were studied by use of an anonymous questionnaire on a total of 154 respondents from three Seventh-day Adventist churches at Montemorelos, Nuevo Leon, Mexico. An abridged form of the questionnaire was administered to the same population three months after concluding a worship seminar designed to improve the understanding of worship. This seminar provided practical experience in worship for the writer and the senior theology students of Montemorelos University . As a whole, there appears to be a good understanding of worship. However, some specific points such as reasons for going to church, consciousness o f God's prior presence and Divine invitation, some aspects of corporateness of worship (such as fellowship), and the role of giving, were misunderstood not only by the laity but also by the ministry . The seminars provided to correct erroneous views showed little effect when measured three months after the instruction. This suggests that worship concepts are difficult to change. The solution is perhaps to direct one's attention to the very young through parents and the ministry.