Purbeck-Wealden (early Cretaceous) climates

Percival Allen; Alastair Ruffell

doi:10.1016/S0016-7878(98)80066-7

Purbeck-Wealden (early Cretaceous) climates

Percival Allen, Alastair Ruffell

School of Natural and Built Environment

Research output: Contribution to journal › Article › peer-review

140 Citations (Scopus)

Abstract

A multidisciplinary colligation including new data and analysis of the evidence for the climates of southern Britain during c. 140 Ma. to c. 120 Ma BP (Berriasian-Barremian — ? earliest Aptian). The climate was at first hot, semi-arid and ‘Mediterranean’ (rather than ‘monsoonal’) in type, probably with seasonally opposed winds (E/W). An irregular long-term trend of increasing rainfall in the moister seasons is evident. This was probably associated with establishment of predominant westerlies during the Jurassic-Cretaceous transition and slightly lower average annual temperatures thereafter until Barremian times. Causes proposed are frequent changes in the regional climatic system due to technically induced adjustments of relief under the special conditions of the semi-enclosed Purbeck–Wealden archipelago and increasing proximity of the widening Protoatlantic sea.

Original language	English
Pages (from-to)	197-236
Number of pages	40
Journal	Proceedings of the Geologists' Association
Volume	109
Issue number	3
DOIs	https://doi.org/10.1016/S0016-7878(98)80066-7
Publication status	Published - 1998

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title = "Purbeck-Wealden (early Cretaceous) climates",

abstract = "A multidisciplinary colligation including new data and analysis of the evidence for the climates of southern Britain during c. 140 Ma. to c. 120 Ma BP (Berriasian-Barremian — ? earliest Aptian). The climate was at first hot, semi-arid and {\textquoteleft}Mediterranean{\textquoteright} (rather than {\textquoteleft}monsoonal{\textquoteright}) in type, probably with seasonally opposed winds (E/W). An irregular long-term trend of increasing rainfall in the moister seasons is evident. This was probably associated with establishment of predominant westerlies during the Jurassic-Cretaceous transition and slightly lower average annual temperatures thereafter until Barremian times. Causes proposed are frequent changes in the regional climatic system due to technically induced adjustments of relief under the special conditions of the semi-enclosed Purbeck–Wealden archipelago and increasing proximity of the widening Protoatlantic sea.",

author = "Percival Allen and Alastair Ruffell",

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doi = "10.1016/S0016-7878(98)80066-7",

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T1 - Purbeck-Wealden (early Cretaceous) climates

AU - Allen, Percival

AU - Ruffell, Alastair

PY - 1998

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AB - A multidisciplinary colligation including new data and analysis of the evidence for the climates of southern Britain during c. 140 Ma. to c. 120 Ma BP (Berriasian-Barremian — ? earliest Aptian). The climate was at first hot, semi-arid and ‘Mediterranean’ (rather than ‘monsoonal’) in type, probably with seasonally opposed winds (E/W). An irregular long-term trend of increasing rainfall in the moister seasons is evident. This was probably associated with establishment of predominant westerlies during the Jurassic-Cretaceous transition and slightly lower average annual temperatures thereafter until Barremian times. Causes proposed are frequent changes in the regional climatic system due to technically induced adjustments of relief under the special conditions of the semi-enclosed Purbeck–Wealden archipelago and increasing proximity of the widening Protoatlantic sea.

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DO - 10.1016/S0016-7878(98)80066-7

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SP - 197

EP - 236

JO - Proceedings of the Geologists' Association

JF - Proceedings of the Geologists' Association

IS - 3

ER -

Purbeck-Wealden (early Cretaceous) climates

Abstract

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