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大津 砂泥部層 蟹江ほか, 1977

おおつ

Otsu Member Kanie et al., 1977

別名 (無効): 大津 貝層, 堀の内 基底礫岩層 (ほりのうち)

• 整然層
• 後期 更新世

• 堆積相: 海
• 堆積相: 外洋に面する陸棚斜面
• 岩相: 砂, 泥
• 堆積構造: 斜交層理, 覆瓦構造

• 層厚: 30 - 50 m

------ 整合, ~~~~~~ 不整合, ~~~--- 部分不整合, '''/,, 指交, :::::: 断層, /--/-- 衝上断層, +__+__ 地表, ?--?-- 不明

• 分布: 神奈川県 横須賀市 横須賀 (よこすか) - 大津 (おおつ) - 鴨居 (かもい) - 走水 (はしりみず)
• 化石: ナウマンゾウ, オオツノジカ, ニホンムカシジカ
• 化石 (貝): Acila divaricata, Adomnesia japonica, Aequipecten vesiculosus, Afrocardium edaranum, Angulus venusta, Anisocorbula venusta, Anomia cylaeum, Antalis weinkauffi, Arca boucardi miyatensis, Arca uwaensis, Barispira hinomotoensis, Barbalia bicolorata, Batillaria zonalis, Callistoma consors, Calyptraea yokoyamai, Cardita leana, Chama fragum, Charonia sauliae, Chlamys farreri, Cingulina cinglata, Cirratiscala undulatissima, Claraxis asperus, Clinocardium californiense, Crassatella oblongata, Crassostrea nipponica, Crepidula vispinosa, Cryptonatica adamsiana, Cryptonatica janthostomoides, Cucullaea labiosa granulosa, Cytharopsis sp., Dentalium octangulatum, Elaeocymo braunsi, Enida japonica, Erronea gracilis japonica, Eunaticina papilla, Euspira pallida, Fulvia mutica, Fusinus perplexus, Glossaulax didyma, Glossaulax hosoyai, Glycymeris vestita, Gomphina undulosa, Homalopoma amussitatum, Inquisitor jeffreysii, Iphinoe unicarinata, Kuroshioturris albogemmata, Leiocithara longispira, Lemelliscala replicata, Leucotina gigantea, Limatula kurodai, Limopsis crenata, Lucinoma concentricum, Macoma praetexta, Merica asperus, Merisca margaritita, Mitrella tenuis, Modiolus nipponicus, Myadora fluctuosa, Mylilus difficilis, Nemocardium sagarangea, Nettastomella japonica, Nipponolimopsis decussata, Notirus ishibashianus, Nuculana yokoyamai, Ocenebra aduncum, Ocenebra burnetti, Ocenebra japonica, Olivella sp., Paphia undulata, Pecten albicans, Pinna bicolor, Pitar subfreum, Placamen tiana, Polynemomussium intuscostatum, Primouia rhodia, Proterato callosa, Protothaca euglypta, Protothaca jedoensis, Psephea sp., Pseudogrammatodon dalli, Reticunassa fretercula, Reticunassa japonica, Reticunassa multigranosa, Ringicula doliaris, Saccella sematensis, Saxidomus purpuratue, Siphonaria spadicea, Solen gordonis, Solen strictus, Strioterebrum subtextile, Suavodrilia declivis, Suchium costatum, Sydaphera spengleriana, Syrnola brunnea, Tegula rustica, Thericium kobelti, Tonna luteostoma, Turcica coreensis, Turritella nipponica, Venericardia ferruginea, Viriola tricincta, Volutharpa perryi, Zeuxis castus

• 江藤ほか (1998) 横須賀地域の地質, 地域地質研究報告 (5万分の1地質図幅), 地質調査所, 128p.