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  • John Esteban Cari

Geology 215 (Advanced Field Mapping) class fieldwork and IEC in Cordillera Administrative Region (CAR)

Graduate students from the National Institute of Geological Sciences conducted their advanced field mapping from July 30 - August 11, 2023, in Abra, Apayao, Kalinga, and Mountain Province for their Geology 215 class. The field class was supervised by Dr. Leo T. Armada, Dr. Carla B. Dimalanta, Dr. Betchaida D. Payot, Dr. Gabriel Theophilus V. Valera, Dr. Noelynna T. Ramos, and Mr. Julius Pasco.


The Geology 215 class examined rock exposures in different municipalities during the fieldwork. Various lithologic units were observed, including volcanic rocks of the Abuan Formation and Dibuluan Formation, fossiliferous limestones of the Ibulao Formation, thick sequences of sedimentary rocks of the Lubuagan Formation and Ilagan Formation, pyroclastic deposits of the Awiden Mesa Formation and exposures of intrusive rocks which are associated with the Central Cordillera Diorite Complex (CCDC).


The Geology 215 graduate students with Dr. Armada, Dr. Dimalanta, Dr. Ramos, Mr. Pasco, and Ms. Ruth Dona-al (Geologist from MGB-CAR) in the rock exposure of Lubuagan Formation (left). The output (geologic map with cross-sections) of the fieldwork with Dr. Armada, Dr. Payot, Dr. Valera, and students in their base camp at the Kalinga Evacuation Center.


Professors (Dr. Armada, Dr. Payot, and Dr. Valera) of the Geology 215 class conducted an Information, Education, and Communication (IEC) seminar titled "Geo-Lecture Series: Geology and Geohazards in Kalinga" at Kalinga State University (KSU) last August 10, 2023. The lectures were organized as part of the information education and communication activities of the DOST-funded projects titled "Growth of an Island Arc (GAIA)" and "Marine and Onshore Geophysical Investigations of the Manila Subduction Zone (MOGI)." The lectures discussed the geology of Kalinga as well as potential hazards such as earthquakes, landslides, and volcanic eruptions. Around 70 participants, including Kalinga Local Government Unit (LGU) and Disaster Risk Reduction (DRR) staff members, KSU faculty, and students, attended the lecture series.


Dr. Armada (top left), Dr. Payot (top middle), and Dr. Valera (top right) gave lectures on the geology of Kalinga as well as potential hazards such as earthquakes, landslides, and volcanic eruptions in the province. Group photo of the lecturers, participants, and organizers of the IEC campaign (bottom).

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