Results 111 to 120 of about 1,487,618 (230)
Applied Vegetation Science, Volume 29, Issue 4, October/December 2026.Temperate semi‐natural grasslands soil organic carbon (SOC) stock was significantly associated with soil characteristics, climate, vegetation structure and management. These results indicate that maintaining long‐term extensive management and preventing conversion or degradation of semi‐natural grasslands can simultaneously support biodiversity ...
Elvi Liiv, Triin Reitalu, Aveliina Helm
wiley +1 more source
Sedimentation and diagenesis of the upper Devonian Kakisa Formation, Trout River area, N.W.T.
, 1988 Masters thesis. Results of study which concentrated on the sedimentation and diagenesis of the Upper Devonian Kakiska Formation.
Fyvie, Donald James.
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Boreas, Volume 55, Issue 4, Page 1208-1227, October 2026.The glacierized Valle Frías in Northern Patagonia is one of the best‐studied valleys in South America and includes varved sediments from Lago Frías. We complement this lacustrine record with a high‐resolution documentation of varve counts and their composition.
Bernd Zolitschka +6 more
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Sedimentology, Volume 73, Issue 6, Page 2246-2280, October 2026.ABSTRACT Filamentous, anastomosing spar‐filled networks in Phanerozoic carbonates have been interpreted as the mineralised remains of keratose (non‐spiculate) sponges, yet their recognition remains contested because fabrics of broadly similar appearance may arise from microbial, diagenetic or physical processes. This study combines direct fossil–modern
Jeong‐Hyun Lee +2 more
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Upper Iowa University campus around the close of President Bissell's administration about 1899
, 1899 oai:cdm17238.contentdm.oclc.org:p17238coll1/0Drawing of Upper Iowa University campus showing Science Hall and Business College [now the location of Colgrove-Walker Building]; Chapel [now Parker-Fox]; Observatory [no longer exists]; Main Building with a ...
Upper Iowa University
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Occurrence of a Ctenacanthoid Shark Spine from the Upper Devonian of North Central Iowa [PDF]
, 1974 Although a diverse, invertebrate fauna is characteristic of the Upper Devonian, Lime Creek Formation, in north central Iowa, fossil fish remains are sparse. A detached and incomplete shark spine with ctenacanthoid features is reported and described.
Johnson, Markes E.
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Devonian strata of the Southern Timan: paleomagnetic data [PDF]
Нефтегазовая геология: Теория и практикаNew paleomagnetic determinations are presented based on a reconnaissance collection of rocks of the Frasnian and Famennian stages of the Upper Devonian, selected on the river Ukhta and river Izhma.
Iosifidi A.G., Sal'naya N.V.
doaj
Famennian (Upper Devonian) stromatolite reefs at Shatang, Guilin, Guangxi, South China
, 2004 Stromatolites occurred in many reef complexes throughout the Phanerozoic, and microbial communities played an important role in both ancient and modern stromatolite reefs.
Webb, GE +5 more
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Sedimentology, Volume 73, Issue 6, Page 2417-2453, October 2026.ABSTRACT The Triassic succession of the northern North Sea comprises a series of interbedded sandstones, mudstones and conglomerates deposited under a fluctuating arid to semi‐humid climate regime, which are often difficult to correlate regionally due to differing lithostratigraphic schemes and poor age control. Despite existing regional studies on the
Riccardo Sordi +3 more
wiley +1 more source
Reservoir characterization and potential of the old red sandstone around the inner moray firth, NE Scotland [PDF]
, 1993 Old Red Sandstone deposition in North East Scotland occurred during Devonian times within the Orcadian Basin, a northeast-southwest elongated structure. The basin formed in an extensional tectonic regime that resulted from gravitational collapse of over ...
Forbes, Douglas
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