Comments to Angulo et al. 2016 on 'Sea-level fluctuations and coastal evolution in the state of Rio de Janeiro, southeastern - Brazil' by Castro et al. 2014
| Autor: | Aline Meneguci da Cunha, José Carlos Sícoli Seoane, João Wagner Alencar Castro, Camila Areias de Oliveira, Stella R. Vaz, Kenitiro Suguio, Julia Varella Malta |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010504 meteorology & atmospheric sciences
geological and biological indicators media_common.quotation_subject Field data 010502 geochemistry & geophysics 01 natural sciences law.invention Altitude State (polity) law PALEOCEANOGRAFIA Radiocarbon dating lcsh:Science Paleo sea-level Sea level Holocene 0105 earth and related environmental sciences media_common Multidisciplinary Geodetic datum sea-level fluctuations curve Geography Georeference lcsh:Q Physical geography RSL vertical variation |
| Zdroj: | Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP Anais da Academia Brasileira de Ciências, Vol 90, Iss 2, Pp 1369-1375 Anais da Academia Brasileira de Ciências, Volume: 90, Issue: 2, Pages: 1369-1375, Published: APR 2018 Anais da Academia Brasileira de Ciências v.90 n.2 2018 Anais da Academia Brasileira de Ciências Academia Brasileira de Ciências (ABC) instacron:ABC |
| Popis: | Interpretation of sea-level indicators is essential when studying paleo sea-level fluctuations during the Holocene. Sea-level indicators may have different origins, such as geological (beachrocks) and biological (vermetids and barnacles). In order to reconstruct paleo sea-level, it is necessary to attribute an indicative meaning to each sea-level indicator. This paper aims to discuss issues raised by Angulo et al. (2016) regarding to the sea-level fluctuations curve proposed by Castro et al. (2014) to the Rio de Janeiro State coast, Brazilian southeast. The key issue that deserves posing is that local or regional curves cannot be built based on large scale (global) RSL geophysical models even in places of steady crust like Brazil. Here, we put into question the relative sea-level fluctuation curve model proposed by Angulo et al. (2006, 2016) to the coast of Rio de Janeiro State and Pernambuco State. It is strengthened the proposal of using different origins indicators on RSL vertical variation, georeferenced by high precision altitude GPS, adjusted by Brazilian Geodetic System benchmarks, maintained by the Brazilian Institute of Geography and Statistics - IBGE. All issues regarding the curve drawn by Castro et al. (2014) are answered based on field data, laboratory analytical techniques, radiocarbon dating as well as relevant literature. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|