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mantian/Bolsovian boundary and at the
Bolsovian/Asturian boundary. Further and
more prominent falls are related to transitions
from coal-bearing to non-coal-bearing (mostly
red bed) strata or vice versa during Stephanian
times. Interpretation of climatic signals recorded
in the sedimentary successions indicates
that Westphalian and middle Stephanian
times were wet intervals, whereas early and
late Stephanian times were drier.
2008010489
英 国 南 部 晚 石 炭 世 蜚 蠊 类 昆 虫 的 地 层 学 潜
力 = The stratigraphical potential of blattodean
insects from the late Carboniferous of
southern Britain. ( 英 文 ). Jarzembowski E A;
Schneider J W. Geological Magazine, 2007,
144(3): 449-456
The Blattodea (cockroaches sensu lato or
roachoids) from the southern coalfields of the
UK are reviewed or examined, especially species
occurring in more than one coal basin
including Mylacris abrupta (Bolton, 1930)
comb. nov., and undescribed material from
Writhlington (Somerset). It is proposed that a
derived mylacrid Mylacris–Sooblatta assemblage
is used to extend the latest Westphalian
and earliest Stephanian insect zonation from
the continent to southern Britain, thus augmenting
the European Pennsylvanian scheme.
中 生 界
2008010490
盎 格 鲁 - 巴 黎 盆 地 Gault Clay( 阿 尔 拜 阶 ) 磷
块 岩 及 其 成 因 = Phosphates and phosphogenesis
in the Gault Clay (Albian) of the Anglo–Paris
Basin. ( 英 文 ). Knight R I. Cretaceous
Research, 1999, 20(5): 507-521
Textural and structural analyses of phosphatic
nodules in Albian clays and glauconitic
sandy clays from the Anglo–Paris Basin
(‘Gault Clay’s.l.) indicate formation within a
fluctuating, dynamic seafloor energy regime.
They formed via phosphate precipitation
around organic-rich clasts within anoxic, low
pH sediments. Incremental growth is observed
owing to reworking cycles of exhumation and
reburial. Primary ultrastructure is preserved
within the nodules, but provides only limited
evidence as to the precipitation mechanism of
phosphogenesis, although microbial and colloidal
systems are most likely.
2008010491
澳 大 利 亚 Eromanga 盆 地 东 北 部 早 白 垩 纪
克 拉 通 内 盆 海 进 过 程 的 水 深 变 化 = Bathymetric
change during Early Cretaceous intracratonic
marine transgression across the northeastern
Eromanga Basin, Australia. ( 英 文 ).
Campbell R J; Haig D W. Cretaceous Research,
1999, 20(4): 403-446
Bathymetric change is investigated
within the transgressive phase of an extensive
Early Cretaceous (Aptian-Albian) marine
flooding of the Australian continent. Lithofacies
and biofacies associations, found in nine
outcrop sections and four continuously cored
bore sections in the northeastern Eromanga
Basin, are used to reconstruct depositional
environments and to determine palaeobathymetry.
Shoreface (c . 0–2 m water depth),
transitional (c .