Browsing by Author "Riding, Jim"
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- Middle-Upper Jurassic palynology of the Sagres region and the Carrapateira outlier: southern PortugalPublication . Borges, Marisa; Fernandes, Paulo; Pereira, Zélia; Riding, JimThe palynology of the Middle-Upper Jurassic fill of the Sagres region (Algarve Basin) and the Carrapateira outlier, southern Portugal was investigated. Samples were collected from Mareta beach, Cilheta beach and the Carrapateira outlier. Dinoflagellate cysts are confined to the Upper Bajocian to Upper Callovian sedimentary rocks exposed at Mareta and Cilheta beaches and the Lower Kimmeridgian strata of the Carrapateira outlier. The palynostratigraphical study of the Jurassic successions has yielded new biostratigraphical data based on dinoflagellate cysts and miospores. The results confirm, and in some cases refine, the existing macrofaunal age determinations of these successions.
- Palinoestratigrafia do Jurássico da região de Sagres (Bacia Algarvia) e da Carrapateira: resultados preliminariesPublication . Borges, Marisa; Fernandes, Paulo; Pereira, Zélia; Riding, JimA análise palinoestratigráfica das sucessões jurássicas da região de Sagres (Bacia Algarvia) e do afloramento Mesozóico da Carrapateira permitiu a obtenção de novos dados bioestratigráficos, com base em dinoflagelados e mioesporos. Os novos resultados confirmam, e em alguns casos refinam, as idades atribuídas a estas sucessões com base em macrofaunas.
- The Middle Jurassic palynology of the Sagres region, southern Portugal.Publication . Borges, Marisa; Fernandes, Paulo; Pereira, Zélia; Riding, JimThe Algarve Basin corresponds to the southernmost geological province of mainland Portugal. It has an E-W strike and is represented onshore from Cap São Vicente to the Guadiana River on the Portuguese-Spanish border. More than 3000 m of essentially marine sediments accumulated during Mesozoic-Cenozoic times in the Algarve Basin.