Università Roma Tre

Criteria for recognition of eruptive, magmatic and metamorphic rocks and relative textures in the field. Recognition of primary and secondary (tectonic) foliation in metamorphic rocks. Recognition and cartographic representation of faults, bedding and lithological contacts.

Lecture notes provided by the teacher

First part: igneous petrology
classification and nomenclature of igneous rocks. igneous structures and field relationship.
diversification of magmas. magmatism and plate tectonic.

Second part: metamorphic petrology
The types of metamorphism. classification of metamorphic rocks. structures and textures of metamorphic rocks

MATERIALS FURNISHED BY THE PROFESSOR.

Study of marine terraces (Tarquinia and Montalto di Castro area, northern Latium) and their tectonic meaning by field survey, air-photo interpretation and palaeontologic analysis.

hand-outs provided by the professor

The first part of the Muldisciplinary field activity (Paleontology) consists of one day on the field and two ays of laboratorial activity. The field activity is carried out in the Tarquinia and Montalto Di Castro areas (northern Latium) the laboratorial activity is developed in the Roma Tre Guest House at Allumiere, provided with steromicroscopess. During the first day, students learn how to draw a stratigraphic log of two sedimentary successions, characterised by different thiknesses and lithologies, measuring the bedding and making microscopical observations on the rock texture, mineralogical and paleontological composition (with the 10x lens). Students collect two samples that will be studied in the following days.
During the two following days in the Guest House, students make the micropaleontological analysis of the collected samples, counting benthic and planktonic foraminifers and picking the stracod valves for their specific identification and the calculation of the percentage frequencies.
At the end of the analyses, students, guided by teachers, discuss the results providing the palaeoenvironmental reconstruction of the examined sedimentary successions in the frame of the landscape evolution. Finally, students are required to write a report which includes two topographic profiles, one geomolphological map of terraces, the calculations to obtain the palaeo-bathymetry of the examined deposits and the Plio-Pleistocene uplift rates of the studied Tyrrenian coastal sector.

Atlas of Ostracods (Teacher handhouts)