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Bukid Series 2: Mt. Pinatubo

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By: Erika Florence P. Inez Aerial view of Mount Pinatubo (http://noypicollections.blogspot.com/2011/07/mt-pinatubo-dilemma-turns-to-tourist.html) Standing 1,486 meters above sea level, Mt. Pinatubo is highly one of the Philippines' most famous mountains. Located on the   tripoint  boundary of the  Philippine provinces  of  Zambales ,  Tarlac  and   Pampanga , all in  Central Luzon  on the northern island of  Luzon, this mountain is well-known for its eruptive history. Pinatubo was once obscure, covered with dense forests and is supported several thousand indigenous Aetas. It was a little known volcano and it had been dormant for almost 400 years. But in 15 June 1991 , Mt. Pinatubo erupted, and it became the second largest volcanic eruption of the 20th century. Complicating the eruption was the appearance of Typhoon Diding (International name: Typhoon Yunya), bringing a lethal mix of ash and rain to the neighbor...
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THE ROCK CHRONICLES: Green Schist

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What is greenschist? Greenschist is a fine-grained to medium-grained foliated metamorphic rock. It is dominated by chlorite (ClO2-), actinolite (Ca2(Mg,Fe)5Si8O22(OH)2), and epidote (Ca2(Al,Fe)2(SiO4)3(OH)). Greenschists form by regional metamorphism of mafic igneous rocks, usually basaltic rocks, under greenschist facies metamorphism. The name comes from commonly having an abundance of green minerals such as chlorite, serpentine, and epidote, and platy minerals such as muscovite and platy serpentine. Figure 1. Unpolished green schist with visible sharp side. Figure 2. Visible dull sides of an unpolished green schist. Figure 3. Diamond-like polished green schist pictured with its sharp side visible. Figure 4. Visible blunt edges of the polished green schist. Specific Characteristics of Greenschist Based on observation, the rock was sort of dusty and dull at first but after polishing it by washing it with water, the green color of ...
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Landslides: A personal narrative

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By: Erika Florence P. Inez La Conchita slump in California. Retrieved from USGS site:  http://pubs.usgs.gov/of/2001/ofr-01-0276/ Mass wasting is the downslope movement of soil and rock debris due to gravity. It is classified into three major types—falls, slides and flows. Landslides have always been one of the major issues in our country throughout the wet season, especially during the presence of a storm. Back when I was in second grade, my family and I traveled to Baguio with our family friends for leisure. What was supposed to be a weekend getaway almost turned into a drastic vacation. My parents have always been the adventurous type. They’ve always liked travelling, and I’m glad they always bring us along with them in most of their escapades. Back in 2011, we went to Baguio to visit the Philippine Military Academy (PMA). Right from the start of our journey, when we were riding the airplane at Mactan Cebu International Airport, we took so much time until we were abl...
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