A5024214437- Geomagnetism and Paleomagnetism Studies
- Geology and Paleoclimatology Research
- Geophysical and Geoelectrical Methods
- Geological and Geochemical Analysis
- Archaeological and Historical Studies
- Archaeology and ancient environmental studies
- Archaeological and Geological Studies
- Religious and Theological Studies
- Medieval Architecture and Archaeology
- Geological and Geophysical Studies Worldwide
- Geochemistry and Geologic Mapping
- Magnetic and Electromagnetic Effects
- Geological and Tectonic Studies in Latin America
- Engineering Applied Research
- Heavy metals in environment
- Theology and Canon Law Studies
- Earthquake Detection and Analysis
- Geological Studies and Exploration
- Urbanism, Landscape, and Tourism Studies
- earthquake and tectonic studies
- Philosophy, Health, and Society
- Archaeology and Cultural Heritage
- Pleistocene-Era Hominins and Archaeology
- Quantum Computing Algorithms and Architecture
- Ethics and bioethics in healthcare
Universidad Nacional Autónoma de México
2016-2025
Universidad de Morelia
2013-2025
Universidad de Jaén
2024
Telefonica Research and Development
2024
Military University Nueva Granada
2024
Florida International University
2024
Dirección de Investigación y Desarrollo
2021
Milliman (United States)
2021
University of Manchester
2021
Manado State University
2021
The Yucatán Peninsula, a key region of the ancient Maya civilization, has long presented challenges in establishing absolute chronological frameworks for its cultural practices. While central regions Mesoamerica have been extensively studied, southern areas, including Yucatán, remain underexplored. Limekilns, integral to lime production pre-Hispanic society, are well suited archaeomagnetic studies due high temperatures (>700 °C) required their operation. This study analyzed 108 specimens...
Abstract As part of the effort to establish an archeointensity variation curve for Mesoamerica, 13 archeologically well-identified pottery samples belonging Ocozocoautla site (Chiapas) were studied. Analyzed consist ‘ofrenda type’ fragments found in several caves. Three archeological intervals are involved: 450-100 B.C., 200–550 A.D. and 550–900 The Thellier method its modified form was applied small previously embedded salt pellets. Raw intensity values further corrected cooling rate...
Eleven Late Quaternary lava flows were sampled in the Chichinautzin volcanic field of central Mexico to determine their magnetic characteristics and absolute paleointensity. The samples studied cover a geological time interval approximately 0.39 My 2000 years. Several rock-magnetic experiments carried out order identify carriers obtain information about paleomagnetic stability. Continuous susceptibility measurements with temperature most cases yield reasonably reversible curves Curie points...
A recent (2000 BP) lava flow from central Mexico has been sampled along a vertical profile with 55 cores covering total thickness of 6.6 m. wide range physical and magnetic parameters have studied to characterise the samples: Curie temperature saturation magnetisation as intrinsic properties; density, susceptibility remanence intensity bulk Königsberger Q-factor hysteresis coercivity parameters. All vary smoothly over profile, most probably due grain size variation minerals present in...
Sixteen Miocene, Pleistocene, and historic lava flows have been sampled in Lanzarote (Canary Islands) for paleointensity analysis with both the Coe multispecimen methods. Besides obtaining new data, main goal of study was comparison results determined two different techniques. Characteristic Remanent Magnetization (ChRM) directions were obtained 15 flows, 12 chosen determination. In Thellier-type experiments, a selection reliable determinations (43 78 studied samples) performed using sets...
Thellier paleointensity experiments were carried out on Early Cretaceous Paraná Flood Basalts. Forty‐two samples from 11 lava flows yielded apparently reliable absolute intensity determinations. The mean values per flow obtained in this study are ranging 19.4 ± 4.0 to 46.7 7.0 μT and the corresponding Virtual Dipole Moments 0.6 10.5 1.1 (10 22 Am 2 ). These yield a value of 7.2 2.3 × 10 , which is about 92% present geomagnetic axial dipole. Our results conjunction with Tarduno et al. 's...
We report the results of a detailed rock-magnetic study basaltic andesites for one best documented cases first occurrence new volcano, 1943–1952 eruption Paricutin in central Mexico. 102 oriented standard palaeomagnetic cores corresponding to 12 sites were collected from seven different lava effusion episodes, which cover interval between 1943 September–December and 1946 March–August. Thermomagnetic investigations reveal that remanence is carried most by Ti-poor titanomagnetite, resulting...
Absolute intensity determinations using the Coe variant of Thellier method have been carried out on some selected pottery fragments collected in wetlands lower Paraná (Pampean region, Argentina) order to construct first archaeointensity master curve for South America. Associated radiometric ages range between 1640 ± 70 and 730 bp . Twenty‐one samples (five fragments) 46 studied (eight provided successful absolute determinations. The fragment‐mean values obtained this study from 21.9 2.3 42.6...
We present new archaeointensity results from three Italian kilns situated at Ascoli Satriano, Vagnari and Fontanetto Po obtained with the Thellier modified by Coe double heating method. These data complement directional previously published. All sites are dated on basis of archaeological information and/or thermoluminescence dating. The corrected for anisotropy thermoremanent magnetization cooling rate effects. compared published Italy nearby countries within 900 km radius Viterbo. An...
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Abstract The geomagnetic field variations on the continent of Africa are still largely undeciphered for past two millennia. In spite archaeological artefacts being reliable recorders ancient strength, only few data have been reported this so far. Here we use Thellier-Coe and calibrated pseudo-Thellier methods to recover archaeointensity from Burkina Faso Ivory Coast (West Africa) well-dated artefacts. By combining our 18 new with previously published West Africa, construct a reference curve...
Microscopic and rock-magnetic studies of the ores host rocks El Laco iron oxide deposits permit us to characterize magnetic mineralogy processes affecting natural remanent magnetization (NRM) during emplacement evolution deposits. Particular attention was devoted identifying mineral composition (magnetite and/or titanomagnetite, hematite titanohematite, titanomaghemite) grain size variations both rock. Rock-magnetic data are used clarify domain states remanence acquisition processes, assess...