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The identification of essential oils constituents has been made easier and faster by the use of automatic software search engines that compare the experimental mass spectra and calculate the retention indices with those in commercial databases. However, these search engines and databases are very expensive. Electronic sheets have been assembled in a set of linked sheets, so that after some data is inserted, linear retention indices, relative response factors, normalization, area correction and absolute quantitation are calculated automatically. The set has been applied to the analysis of essential oils and volatiles in laboratory routine and substantial reduction in time-consuming and error-prone repetitive work were observed. One specific example for the analysis of an essential oil is provided. The designed electronic sheets can be a costless alternative to commercial software for data handling and identification.

The Orla Project is a tool of the Brazilian Coastal Management resultant of joint action between the Environment Ministry and the Planning Ministry. This project articulates the three spheres of the government (federal, state, and municipal) and society. Its actions seek the management of the coastal spaces, approaching the environmental and heritage politics. The construction of a Plan for the Integrated Management of the Coastline occurs through workshops with the development of methodologies of diagnosis construction, classification and formulation of scenarios. The classification of the coastline integrates the strategic planning, which will subsidize the decision making process to reach the desired scenarios. Araranguá municipality started its workshops in October 2014, with lectures and discussions between technicians from the federal and state governments, and coordination by the municipal government. During the project period, a field day and more than 40 workshops were developed, which had the participation of the community and public managers. As a result of the workshops, the coastline was sectored by its landscape, typology (exposed, semi-exposed, and sheltered), and levels of occupation in five sectors (S1 to S5). The project identified 40 problems in the area, some recurrent in all sectors and a few specific of some places. In order to solve these problems, 80 actions and measures with different priorities were defined. From the workshops of the Orla Project, it was possible to identify the need to create rules for the use of Araranguá coastline, thus enabling its conservation and helping its sustainable development.

Understanding the evolutionary processes that occurred for the current conformation of the coastal environment is very important for studies related to the planning and coastal management. This study aims to characterize the Holocene coastal barrier at the southern sector of Jaguaruna, Santa Catarina, in terms of geology, geomorphology and evolution, by analyzing surface and subsurface data, to support the coastal management in the region. The study was based on aerial photographs interpretation and geophysical analysis of GPR data. Four sedimentary deposits were identified on the surface of the coastal barrier: Eolic Deposit, Beach-Marine Deposit, Beach-Lagoonal Deposit and Paludal Deposit. Geomorphologicaly, these deposits occur as sand dunes, strandplain and wetlands, respectively. Furthermore, precipitation ridges and paleochannels are also found in the morphology of the barrier. Regarding the subsurface information, the main observation is the influence of the Urussanga River in the shallow marine and beach environment during the barrier evolution. The presence of paleochannels in subsurface along with other surface information allowed the characterization of the evolutionary behavior of the barrier as regressive. The GPR sections enable to identify the paleochannels due to the presence of concave erosive surface with high amplitude and lateral continuity. Above these surface occurs paleochannels filling in different phases. These geological and geomorphological information have important implications for the planning and territorial management., Compreender os processos evolutivos que ocorreram para a conformação atual do ambiente costeiro é de suma importância para estudos relacionados ao planejamento e gestão do litoral. O presente trabalho tem como objetivo caracterizar a barreira costeira holocênica do setor sul de Jaguaruna, Santa Catarina, do ponto de vista geológico, geomorfológico e evolutivo, através de dados de superfície e de subsuperfície, a fim de subsidiar a gestão costeira da região. O estudo foi realizado com base na interpretação de fotografias aéreas e na análise de dados geofísicos obtidos com um GPR. Em superfície foram identificados quatro depósitos sedimentares compondo a barreira costeira: Depósito Lagunar Praial, Depósito Paludial, Depósito Eólico e Depósito Marinho Praial. Do ponto de vista geomorfológico, esses depósitos se apresentam na forma de planície de cordões litorâneos, banhados, dunas e praia, respectivamente. Além destes, cristas de precipitação e paleocanais se destacam na morfologia da barreira. Quanto às informações de subsuperfície, a principal observação está relacionada à influência do Rio Urussanga sobre o ambiente marinho raso e praial durante a evolução da barreira. A presença de paleocanais em subsuperfície, juntamente com outras informações identificadas em superfície, permitiram caracterizar o comportamento evolutivo da barreira como regressiva. As seções de GPR possibilitaram identificar os paleocanais devido à presença de uma superfície erosiva em forma côncava, com alta amplitude e continuidade lateral. Acima dessa superfície ocorre o preenchimento dos paleocanais em fases distintas. Estas informa- ções de caráter geológico e geomorfológico têm implicações importantes para o planejamento e gestão territorial.

This paper documents the occurrence of mollusk carbonate fossils in sediments of the backbarrier of the Pinheira-Guarda- -Gamboa beaches, Santa Catarina Coastal Plain, southern Brazil, in which five species of gastropods and nine of bivalves were recognized. Among the bivalves, four species were articulated, Ostrea equestris, Anomalocardia brasiliana, Lucina pectinata and Tagelus plebeius, and the last three were found in life position. Radiocarbon datings were performed on articulate and life position specimens: Lucina pectinata, indicating a conventional age of 5.260 ± 30 years BP. (calibrate age 5.620 - 5.440), Tagelus plebeius, 5.620 ± 30 years BP. (calibrate age 6.000 - 5.840) and Ostrea equestris articulate, 5.410 ± 30 years BP. (calibrate age 5.805 - 5.580), indicating the material in the middle Holocene. The topographic data gathered with precision equipment established that the top of the outcrop is 2 m above the relative sea-level. The fossil association suggests lagoon-estuarine environment subsequently filled in response to a lowering of the sea level., Este trabalho documenta a ocorrência de moluscos fósseis carbonáticos em sedimentos da retrobarreira das praias da Pinheira-Guarda-Gamboa, Planície Costeira de Santa Catarina, sul do Brasil, onde foram reconhecidas cinco espécies de gastrópodes e nove de bivalves. Dentre os bivalves, identificaram-se quatro espécies articuladas, Ostrea equestris, Anomalocardia brasiliana, Lucina pectinata e Tagelus plebeius, as três últimas registradas em posição de vida. Datações radiocarbônicas foram realizadas em espécimes articulados e em posição de vida: Lucina pectinata apontando idades convencionais de 5.260 ± 30 anos AP (idade calibrada 5.620 - 5.440), Tagelus plebeius, 5.620 ± 30 anos AP (idade calibrada 6.000 - 5.840) e Ostrea equestris apenas articulado, 5.410 ± 30 anos AP (idade calibrada 5.805 - 5.580), posicionando o material no Holoceno médio. O dado topográfico com equipamento de precisão estabeleceu que o topo do afloramento encontra- -se a 2 m acima do nível relativo atual do mar. A associação indica um ambiente lagunar-estuarino, posteriormente colmatado como resposta ao rebaixamento do nível do mar.

Foredune ridges and beach ridges are morphological elements largely present in coastal lakes and coastal lagoons. However, it still requires further studies. This paper presents results of a prograding strandplain (sand ridge plain) developed at the NE margin of Quadros Lagoon, in the northern littoral of Rio Grande do Sul. Aerial photographs analysis, topographic surveying, GPR records, soundings and surface samples allowed to study the morphology of the strandplain and the stratigraphic framework of their respective sedimentary deposits. The strandplain comprises 20 continuous and semi-continuous ridges, of low amplitude and spaced 5 to 50 m. A regressive sequence comprising deposits of shoreface, backshore/beachface, foredunes and washover fans was developed aggradacionaly and proggradacionaly over a basal facies of a lagoon bottom, between the last 7 to 6 ky. Transgressive dunefields from the Holocene barrier IV (Curumim barrier) to Quadros Lagoon was probably an important source of sand for the strandplain development., Cordões litorâneos regressivos do tipo dunas frontais (foredune ridges) e do tipo praia (beach ridges) são elementos morfológicos muito comuns em margens de lagoas e lagunas costeiras, embora ainda pouco estudados. Neste trabalho, são apresentados resultados do estudo de uma planície de cordões litorâneos regressivos arenosos que se formou na margem NE da Lagoa dos Quadros, no litoral norte do Rio Grande do Sul. A partir da análise de fotografias aéreas, levantamentos altimétricos, perfis de georadar (GPR), testemunhos de sondagem e amostras superficiais, foram investigadas a morfologia da planície de cordões e o arcabouço estratigráfico de seus respectivos depósitos sedimentares. A planície é composta por 20 cordões contínuos e semi-contínuos, de baixa amplitude e espaçados de 5 a 50 m. Sobre uma fácies basal de fundo lagunar que se formou aproximadamente entre 7 e 6 ka, desenvolveu-se uma sequência regressiva de modo agradacional e progradacional composta por depósitos de antepraia, de pós-praia/face de praia, dunas frontais e depósitos de leque de sobrelavagem. Dunas transgressivas adentrando na lagoa a partir da barreira holocênica IV (barreira de Curumim) podem ter sido uma importante fonte de areia para o desenvolvimento da planície de cordões.