Integrated study of the post-collisional Miocene-Quaternary volcanic forms in the East Carpathians using geological and geophysical constraints

 

Program: IDEI
Project type: Exploratory research projects
Project Cod: PCE-2012-4-0137

 

OBJECTIVES / ACTIVITIES

The concrete objectives of the project are:

1. Analysis/critical review of current models for geodynamic evolution of the Eastern Carpathians, as part of the CPR and its inter-connection with magmatic activity. 2. Building up a computer data-base of geological and geophysical data for the studied area. 3. Identification and deciphering the space-time relationships of the main volcanic structure and intrusive bodies, their interval of emplacement using K/Ar dating, petrological, geological and geophysical data; establishing the geological significance of the combined geophysical anomalies and identification of hidden intrusive bodies; 4. Identification and characterization of the main tectonic alignments associated to, or in close association with magmatic activity by using geological and geophysical data; identifying the orientation of extensional and compressional stress fields; 5. Building-up 3D images for selected volcanic structures and hidden intrusive bodies based on the geologic interpretation of geomagnetic and gravity models, in order to assess their volume, emplacement and evolution; 6. Proposing a complex novel regional model for the emplacement of various volcanic structures and intrusive bodies in close connection with geodynamic processes and comparing with similar geological situations in the world.

RESEARCH PLAN OF THE PROJECT (2013-2016)

– Structure  –

Year

Stage

Objective

Activity

Outcomes/Deliverables

2013

1

1.1. Building up the GIS compatible computer database  for the Study Area(I)

1.1.1. Documentation. Obtaining licence allowance from National Agency for Mineral Resources for the researchers working in the project in order to consult and use unpublished data for the study region.

Stage study 1: Documentation

1.1.2. Defining GIS levels and  structuring database

Stage study 1: Database methodology

1.1.3. Organising database  on specific levels

Stage study 1: Database methodology

1.1.4. Electronic transfer of the topographic data. Building up the DTM

Stage study 1: Building up the regional digital terrain model

1.2 Analysis and critical discussion of the current models associated to geodynamic evolution of the East Carpathians in connexion with Miocene-Quaternary magmatic activity (1).

1.2.1. Realizing a synthesis of the existent data from published and unpublished material

Stage study 1: Activities related to data synthesis

1.3. The identification and description of the main tectonic alignments that were associated with magmatic activity, based on fieldwork geological and geophysical activities – (I)

1.3.1. Fieldwork activities for in situ mapping of the tectonic elements and their connection with the volcanic structures (intrusive and effusive). Sampling for petrographic, petro-physic and geochemical analyses.

Stage study 1: Interpretative geological profiles

2014

2

2.1. Building up the geological and geophysical GIS compatible computer database for study area (II)

2.1.1. Continuation of the organisation on the specific levels of GIS geological database

Stage study 2: Geological maps with attribute type tables

2.1.2. The transfer of the gravity information on electronic support and database validation

Stage study 2: Models of gravity field

2.1.3. The transfer of the ground geomagnetic information on electronic support and database validation

Stage study 2: Models of ground magnetic field

2.1.4. The transfer of the aeromagnetic information on electronic support and database validation

Stage study 2: Models of aeromagnetic anomaly

2.1.5. The transfer of additional information on electronic support and database validation

Stage study 2: Complementary geophysical models

2.1.6 The transfer of rock physics information on electronic support and database validation

Stage study 2: Tables with petro-physic data

2.1.7 The transfer of drilling information on electronic support and database validation

Stage study 2: Tables with drilling data

2.1.8. Updating thematic databases with the results from the second stage

Stage study 2: Updating data base

2.2 Analysis and critical discussion of the current models associated to geodynamic evolution of the East Carpathians in connexion with Miocene-Quaternary magmatic activity (II).

2.2.1. Gravity echoes of the current geological concept

Stage study 2: maps and 2D interpretative models along representative profiles

2.2.2. Geomagnetic echoes of the current geological concept

Stage study 2: maps and 2D interpretative models along representative profiles

2.2.3. The analyses of the way the geologic concept is reflected in other geophysical information categories

Stage study 2: maps and 2D interpretative models along representative profiles

2.3. The identification and description of the main tectonic alignments that were associated with magmatic activity, based on fieldwork geological and geophysical activities – (II)

2.3.1. Integration of the K/Ar age data, petrologic and geophysical data of the volcanic and subvolcanic structures in the study area

Stage study 2: Tables and explanatory notes related to the correlation of age and petrologic data, followed by specific interpretation diagrams for the study area

2.3.2. Field and laboratory activities for new geological and geophysical data acquisition in order to solve the relationship between tectonic and volcanic structural features. Rock sampling for specific geochemical and petro-physical analyses (1).

Stage study 2: Complex geological-geophysical maps for the study area

2.3.3. Advanced data processing aimed at providing more intuitive images for helping geological interpretation

Stage study 2: Maps of gravity / geomagnetic fields and complex anomalies for the study area

2.4. Dissemination activities

2.4.1. Attending national and international conferences in proposed thematic

2 presentations/abstracts

2015

3

3.1. Building up the geological and geophysical GIS compatible computer database for study area. (III)

3.1.1. Completion of the existent data bases with the results obtained during the fieldwork of the 3rd stage

Stage study 3: Updating the thematic data bases

3.1.2. Field and laboratory activities for new geological and geophysical data acquisition in order to solve the relationship between tectonic and volcanic structural features. Rock sampling for specific geochemical and petro-physical analyses (2).

Stage study 3: Complex geological-geophysical maps for the study area

3.2. Realizing 3D images for selected volcanic structures and hidden intrusive bodies based on the complex geological and geophysical (magnetic and gravity modelling) (I)

3.2.1. Geological and geophysical data processing in the view of 3D model elaboration, by using all the data collected on the specific levels

Stage study 3: Geological and petro-physical 2D preliminary models for volcanic structures in the South Harghita – Perşani and Rodna – Bârgău- Călimani de Nord areas to be prepared for the 3D modelling.

3.3. Dissemination activities

3.3.1. Attending national and international conferences in proposed thematic

2 oral or poster presentations/abstracts
3.3.2. Publishing articles in the proposed thematic 1 published ISI article

2016

4

4.1. Building up the geological and geophysical GIS compatible computer database for study area. (IV)

4.1.1. Database completion of the data with the results from the  4th stage

Final stage: Updating thematic databases

4.2. The identification and description of the main tectonic alignments that were associated with magmatic activity, based on fieldwork geological and geophysical activities (III)

4.2.1. Laboratory and geological fieldwork to identify the different types of tectonic stress, compressional or extensional.

Final stage: Thematic maps with distribution of the main structural alignments tectonic elements as respecting the extensive or compressive behaviour in the investigated area

4.2.2. Gravity and magnetic observations along rock sampling for rock physic determination in poorly studied areas.

Final stage: Gravity and magnetic profiles in areas geologically investigated; Density and magnetization values included.

4.2.3. Advanced processing of the geophysical data and generation of simulation models for the anomaly sources in order to identify the hidden structural elements

Final stage: Maps showing the geophysical alignments in areas geologically; interpretative sections

4.3 Realizing 3D images for selected volcanic structures and hidden intrusive bodies based on the complex geological and geophysical (magnetic and gravity modelling) (II)

4.3.1. Generation initial 3D models of the numeric simulation  (version 0)

Final stage: Preliminary geological and petro-physical 3D models

4.3.2. Iterative process to realize 3D models of the gravity and magnetic source anomalies in the study area

Final stage: 3D Geophysical models (geometric and petro-physic) of the sources with observed anomalies

4.3.3. Geological interpretation of the 3D geophysical models realized by using numeric simulation.

Final stage: 3D geological models improved with geophysical data interpretation

4.4 Building up integrated conceptual complex geological-geophysical  model in order to explain the architecture of the volcanic structures and intrusive bodies with consequences on the Miocene-Quaternary geodynamic processes  in the East Carpathians

4.4.1. Qualitative integrated interpretation of the geological and geophysical information under constraint offered by the data of different nature

Final stage: Complex maps that integrate geological and geophysical data
4.4.2. Completion in the study area of the qualitative interpretations of the data with qualitative ones offered by the  2D and 3D simulation models Final stage: Integrated geodynamic model based on the whole geological and geophysical data. Final study.
4.5. Dissemination activities and results 4.5.1. Attending national and international conferences in proposed thematic  with oral and/or poster presentations 2 oral or poster presentations/abstracts
4.5.2. Articles publication 2 articles published in ISI ranked journals